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42023169 = 3243108587
BaseRepresentation
bin1010000001001…
…1100100000001
32221001222221200
42200103210001
541224220134
64100411413
71020122346
oct240234401
987058850
1042023169
11217a26a1
12120a6b69
1389246a6
14581c7cd
153a51499
hex2813901

42023169 has 12 divisors (see below), whose sum is σ = 62112336. Its totient is φ = 27363672.

The previous prime is 42023161. The next prime is 42023183. The reversal of 42023169 is 96132024.

42023169 is a `hidden beast` number, since 420 + 231 + 6 + 9 = 666.

It is not a de Polignac number, because 42023169 - 23 = 42023161 is a prime.

It is a super-2 number, since 2×420231692 = 3531893465605122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42023161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53907 + ... + 54680.

It is an arithmetic number, because the mean of its divisors is an integer number (5176028).

Almost surely, 242023169 is an apocalyptic number.

It is an amenable number.

42023169 is a deficient number, since it is larger than the sum of its proper divisors (20089167).

42023169 is a wasteful number, since it uses less digits than its factorization.

42023169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108636 (or 108633 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 42023169 is about 6482.5279791143. The cubic root of 42023169 is about 347.6665702480. Note that the first 3 decimals are identical.

The spelling of 42023169 in words is "forty-two million, twenty-three thousand, one hundred sixty-nine".

Divisors: 1 3 9 43 129 387 108587 325761 977283 4669241 14007723 42023169