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42885388 = 22721316831
BaseRepresentation
bin1010001110011…
…0000100001100
32222200210200201
42203212010030
541434313023
64131103244
71030343200
oct243460414
988623621
1042885388
1122231477
1212441b24
138b66c90
1459a4b00
153b71bad
hex28e610c

42885388 has 36 divisors (see below), whose sum is σ = 94023552. Its totient is φ = 16964640.

The previous prime is 42885343. The next prime is 42885449. The reversal of 42885388 is 88358824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5868 + ... + 10963.

Almost surely, 242885388 is an apocalyptic number.

It is an amenable number.

42885388 is an abundant number, since it is smaller than the sum of its proper divisors (51138164).

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

42885388 is a wasteful number, since it uses less digits than its factorization.

42885388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16862 (or 16853 counting only the distinct ones).

The product of its digits is 491520, while the sum is 46.

The square root of 42885388 is about 6548.6936101791. The cubic root of 42885388 is about 350.0282643841.

The spelling of 42885388 in words is "forty-two million, eight hundred eighty-five thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 637 1274 2548 16831 33662 67324 117817 218803 235634 437606 471268 824719 875212 1531621 1649438 3063242 3298876 6126484 10721347 21442694 42885388