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42018937 = 1911319571
BaseRepresentation
bin1010000001001…
…0100001111001
32221001210010221
42200102201321
541224101222
64100340041
71020104122
oct240224171
987053127
1042018937
112179a4a4
12120a4621
13892279c
14581b049
153a500c7
hex2812879

42018937 has 8 divisors (see below), whose sum is σ = 44624160. Its totient is φ = 39453120.

The previous prime is 42018923. The next prime is 42018959. The reversal of 42018937 is 73981024.

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

It is not a de Polignac number, because 42018937 - 211 = 42016889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42018967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7639 + ... + 11932.

It is an arithmetic number, because the mean of its divisors is an integer number (5578020).

Almost surely, 242018937 is an apocalyptic number.

It is an amenable number.

42018937 is a deficient number, since it is larger than the sum of its proper divisors (2605223).

42018937 is a wasteful number, since it uses less digits than its factorization.

42018937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19703.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 42018937 is about 6482.2015550274. The cubic root of 42018937 is about 347.6548991124.

The spelling of 42018937 in words is "forty-two million, eighteen thousand, nine hundred thirty-seven".

Divisors: 1 19 113 2147 19571 371849 2211523 42018937