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872974042 = 21133862717
BaseRepresentation
bin110100000010001…
…000011011011010
32020211122200020221
4310002020123122
53241440132132
6222342510254
730430104553
oct6402103332
92224580227
10872974042
11408853356
1220443538a
1310bb232b5
1483d2332a
155198de97
hex340886da

872974042 has 8 divisors (see below), whose sum is σ = 1321049556. Its totient is φ = 432624192.

The previous prime is 872974031. The next prime is 872974051. The reversal of 872974042 is 240479278.

It can be written as a sum of positive squares in 2 ways, for example, as 860307561 + 12666481 = 29331^2 + 3559^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 872974042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931133 + ... + 1931584.

Almost surely, 2872974042 is an apocalyptic number.

872974042 is a deficient number, since it is larger than the sum of its proper divisors (448075514).

872974042 is a wasteful number, since it uses less digits than its factorization.

872974042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862832.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 872974042 is about 29546.1341295270. The cubic root of 872974042 is about 955.7268269697.

The spelling of 872974042 in words is "eight hundred seventy-two million, nine hundred seventy-four thousand, forty-two".

Divisors: 1 2 113 226 3862717 7725434 436487021 872974042