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72924942 = 2312154157
BaseRepresentation
bin1000101100010…
…11111100001110
312002012222012210
410112023330032
5122132044232
611123011250
71543565106
oct426137416
9162188183
1072924942
1138189652
1220509b26
1312153c6c
149984206
1566075cc
hex458bf0e

72924942 has 8 divisors (see below), whose sum is σ = 145849896. Its totient is φ = 24308312.

The previous prime is 72924941. The next prime is 72924977. The reversal of 72924942 is 24942927.

It is a sphenic number, since it is the product of 3 distinct primes.

72924942 is an admirable number.

It is a super-3 number, since 3×729249423 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72924942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72924941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6077073 + ... + 6077084.

It is an arithmetic number, because the mean of its divisors is an integer number (18231237).

Almost surely, 272924942 is an apocalyptic number.

72924942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72924942 is a wasteful number, since it uses less digits than its factorization.

72924942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12154162.

The product of its digits is 72576, while the sum is 39.

The square root of 72924942 is about 8539.6101784566. The cubic root of 72924942 is about 417.7906317774.

The spelling of 72924942 in words is "seventy-two million, nine hundred twenty-four thousand, nine hundred forty-two".

Divisors: 1 2 3 6 12154157 24308314 36462471 72924942