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230310040 = 23523594243
BaseRepresentation
bin11011011101001…
…00000010011000
3121001100221222111
431232210002120
5432424410130
634504202104
75464413562
oct1556440230
9531327874
10230310040
11109005384
1265169334
133893a43c
1422832332
151534502a
hexdba4098

230310040 has 64 divisors (see below), whose sum is σ = 550022400. Its totient is φ = 86604672.

The previous prime is 230310029. The next prime is 230310061. The reversal of 230310040 is 40013032.

It is a self number, because there is not a number n which added to its sum of digits gives 230310040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52159 + ... + 56401.

It is an arithmetic number, because the mean of its divisors is an integer number (8594100).

Almost surely, 2230310040 is an apocalyptic number.

230310040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230310040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275011200).

230310040 is an abundant number, since it is smaller than the sum of its proper divisors (319712360).

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

230310040 is a wasteful number, since it uses less digits than its factorization.

230310040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336 (or 4332 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 230310040 is about 15175.9691618031. The cubic root of 230310040 is about 612.9677471062.

Adding to 230310040 its reverse (40013032), we get a palindrome (270323072).

The spelling of 230310040 in words is "two hundred thirty million, three hundred ten thousand, forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 59 92 115 118 184 230 236 295 460 472 590 920 1180 1357 2360 2714 4243 5428 6785 8486 10856 13570 16972 21215 27140 33944 42430 54280 84860 97589 169720 195178 250337 390356 487945 500674 780712 975890 1001348 1251685 1951780 2002696 2503370 3903560 5006740 5757751 10013480 11515502 23031004 28788755 46062008 57577510 115155020 230310040