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72834942 = 23194115583
BaseRepresentation
bin1000101011101…
…01111101111110
312002001101202110
410111311331332
5122121204232
611121034450
71543041525
oct425657576
9162041673
1072834942
1138127a74
1220485a26
1312121ccb
14995d4bc
1565daacc
hex4575f7e

72834942 has 32 divisors (see below), whose sum is σ = 157086720. Its totient is φ = 22438080.

The previous prime is 72834917. The next prime is 72834973. The reversal of 72834942 is 24943827.

It is a super-2 number, since 2×728349422 = 10609857552286728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72834942.

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, 3118 + ... + 12465.

It is an arithmetic number, because the mean of its divisors is an integer number (4908960).

Almost surely, 272834942 is an apocalyptic number.

72834942 is an abundant number, since it is smaller than the sum of its proper divisors (84251778).

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

72834942 is a wasteful number, since it uses less digits than its factorization.

72834942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15648.

The product of its digits is 96768, while the sum is 39.

The square root of 72834942 is about 8534.3389902206. The cubic root of 72834942 is about 417.6186895270.

The spelling of 72834942 in words is "seventy-two million, eight hundred thirty-four thousand, nine hundred forty-two".

Divisors: 1 2 3 6 19 38 41 57 82 114 123 246 779 1558 2337 4674 15583 31166 46749 93498 296077 592154 638903 888231 1277806 1776462 1916709 3833418 12139157 24278314 36417471 72834942