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88142988 = 2237345249
BaseRepresentation
bin1010100000011…
…11010010001100
320010212010110010
411100033102030
5140031033423
612425113220
72120126433
oct520172214
9203763403
1088142988
114583314a
1225628810
131535191b
14b9c611a
157b11693
hex540f48c

88142988 has 12 divisors (see below), whose sum is σ = 205667000. Its totient is φ = 29380992.

The previous prime is 88142963. The next prime is 88143037. The reversal of 88142988 is 88924188.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3672613 + ... + 3672636.

Almost surely, 288142988 is an apocalyptic number.

It is an amenable number.

88142988 is an abundant number, since it is smaller than the sum of its proper divisors (117524012).

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

88142988 is a wasteful number, since it uses less digits than its factorization.

88142988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345256 (or 7345254 counting only the distinct ones).

The product of its digits is 294912, while the sum is 48.

The square root of 88142988 is about 9388.4497122794. The cubic root of 88142988 is about 445.0367987075.

The spelling of 88142988 in words is "eighty-eight million, one hundred forty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 7345249 14690498 22035747 29380996 44071494 88142988