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42073524 = 22321961511
BaseRepresentation
bin1010000001111…
…1110110110100
32221011120000200
42200133312310
541232323044
64101440500
71020422223
oct240376664
987146020
1042073524
1121827509
1212110130
13894159c
145832cba
153a61369
hex281fdb4

42073524 has 36 divisors (see below), whose sum is σ = 111951840. Its totient is φ = 13286160.

The previous prime is 42073523. The next prime is 42073529. The reversal of 42073524 is 42537024.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×420735243 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42073523) 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, 30072 + ... + 31439.

Almost surely, 242073524 is an apocalyptic number.

It is an amenable number.

42073524 is an abundant number, since it is smaller than the sum of its proper divisors (69878316).

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

42073524 is a wasteful number, since it uses less digits than its factorization.

42073524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61540 (or 61535 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 42073524 is about 6486.4107178007. The cubic root of 42073524 is about 347.8053806759.

The spelling of 42073524 in words is "forty-two million, seventy-three thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 61511 123022 184533 246044 369066 553599 738132 1107198 1168709 2214396 2337418 3506127 4674836 7012254 10518381 14024508 21036762 42073524