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308873088 = 2734313
BaseRepresentation
bin10010011010010…
…000011110000000
3210112012101020000
4102122100132000
51113032414323
650352120000
710440243426
oct2232203600
9715171200
10308873088
11149394a17
1287536000
134bcb6754
142d043116
151c1b2e43
hex12690780

308873088 has 160 divisors (see below), whose sum is σ = 949840320. Its totient is φ = 99636480.

The previous prime is 308873069. The next prime is 308873093. The reversal of 308873088 is 880378803.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9963633 + ... + 9963663.

It is an arithmetic number, because the mean of its divisors is an integer number (5936502).

Almost surely, 2308873088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308873088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474920160).

308873088 is an abundant number, since it is smaller than the sum of its proper divisors (640967232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308873088 is an frugal number, since it uses more digits than its factorization.

308873088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 308873088 is about 17574.7855747944. The cubic root of 308873088 is about 675.9688605336.

It can be divided in two parts, 3088 and 73088, that added together give a square (76176 = 2762).

The spelling of 308873088 in words is "three hundred eight million, eight hundred seventy-three thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 81 93 96 108 124 128 144 162 186 192 216 248 279 288 324 372 384 432 496 558 576 648 744 837 864 961 992 1116 1152 1296 1488 1674 1728 1922 1984 2232 2511 2592 2883 2976 3348 3456 3844 3968 4464 5022 5184 5766 5952 6696 7688 8649 8928 10044 10368 11532 11904 13392 15376 17298 17856 20088 23064 25947 26784 29791 30752 34596 35712 40176 46128 51894 53568 59582 61504 69192 77841 80352 89373 92256 103788 107136 119164 123008 138384 155682 160704 178746 184512 207576 238328 268119 276768 311364 321408 357492 369024 415152 476656 536238 553536 622728 714984 804357 830304 953312 1072476 1107072 1245456 1429968 1608714 1660608 1906624 2144952 2413071 2490912 2859936 3217428 3321216 3813248 4289904 4826142 4981824 5719872 6434856 8579808 9652284 9963648 11439744 12869712 17159616 19304568 25739424 34319232 38609136 51478848 77218272 102957696 154436544 308873088