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307944 = 233271347
BaseRepresentation
bin1001011001011101000
3120122102100
41023023220
534323234
610333400
72421540
oct1131350
9518370
10307944
111a03aa
1212a260
13aa220
1480320
1561399
hex4b2e8

307944 has 96 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 79488.

The previous prime is 307939. The next prime is 307969. The reversal of 307944 is 449703.

307944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

307944 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

307944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6529 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (10920).

2307944 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 307944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524160).

307944 is an abundant number, since it is smaller than the sum of its proper divisors (740376).

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

307944 is a wasteful number, since it uses less digits than its factorization.

307944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 307944 is about 554.9270222290. The cubic root of 307944 is about 67.5290410016.

The spelling of 307944 in words is "three hundred seven thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 36 39 42 47 52 56 63 72 78 84 91 94 104 117 126 141 156 168 182 188 234 252 273 282 312 329 364 376 423 468 504 546 564 611 658 728 819 846 936 987 1092 1128 1222 1316 1638 1692 1833 1974 2184 2444 2632 2961 3276 3384 3666 3948 4277 4888 5499 5922 6552 7332 7896 8554 10998 11844 12831 14664 17108 21996 23688 25662 34216 38493 43992 51324 76986 102648 153972 307944