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42235788 = 2237502807
BaseRepresentation
bin1010000100011…
…1011110001100
32221110210121110
42201013132030
541303021123
64105132020
71021666260
oct241073614
987423543
1042235788
1121928411
121218a010
13899a3ba
1458760a0
153a94493
hex284778c

42235788 has 24 divisors (see below), whose sum is σ = 112628992. Its totient is φ = 12067344.

The previous prime is 42235783. The next prime is 42235801. The reversal of 42235788 is 88753224.

It is not an unprimeable number, because it can be changed into a prime (42235783) 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, 251320 + ... + 251487.

Almost surely, 242235788 is an apocalyptic number.

It is an amenable number.

42235788 is an abundant number, since it is smaller than the sum of its proper divisors (70393204).

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

42235788 is a wasteful number, since it uses less digits than its factorization.

42235788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502821 (or 502819 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 42235788 is about 6498.9066772804. The cubic root of 42235788 is about 348.2519314581.

It can be divided in two parts, 4223 and 5788, that added together give a triangular number (10011 = T141).

The spelling of 42235788 in words is "forty-two million, two hundred thirty-five thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 502807 1005614 1508421 2011228 3016842 3519649 6033684 7039298 10558947 14078596 21117894 42235788