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42212884 = 2271507603
BaseRepresentation
bin1010000100000…
…1111000010100
32221102122012011
42201001320110
541301303014
64104434004
71021542430
oct241017024
987378164
1042212884
112191218a
1212178904
13898cb4c
14586b9c0
153a8c7c4
hex2841e14

42212884 has 12 divisors (see below), whose sum is σ = 84425824. Its totient is φ = 18091224.

The previous prime is 42212879. The next prime is 42212941. The reversal of 42212884 is 48821224.

42212884 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 753774 + ... + 753829.

Almost surely, 242212884 is an apocalyptic number.

It is an amenable number.

42212884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42212884 is a wasteful number, since it uses less digits than its factorization.

42212884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507614 (or 1507612 counting only the distinct ones).

The product of its digits is 8192, while the sum is 31.

The square root of 42212884 is about 6497.1442957656. The cubic root of 42212884 is about 348.1889690204.

The spelling of 42212884 in words is "forty-two million, two hundred twelve thousand, eight hundred eighty-four".

Divisors: 1 2 4 7 14 28 1507603 3015206 6030412 10553221 21106442 42212884