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72000088 = 239000011
BaseRepresentation
bin1000100101010…
…10001001011000
312000110222112221
410102222021120
5121413000323
611051113424
71532663536
oct422521130
9160428487
1072000088
1137707806
1220142874
1311bbc004
1497c3156
1564c355d
hex44aa258

72000088 has 8 divisors (see below), whose sum is σ = 135000180. Its totient is φ = 36000040.

The previous prime is 72000053. The next prime is 72000091. The reversal of 72000088 is 88000027.

It is a tau number, because it is divible by the number of its divisors (8).

72000088 is a modest number, since divided by 88 gives 72 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4499998 + ... + 4500013.

Almost surely, 272000088 is an apocalyptic number.

It is an amenable number.

72000088 is a deficient number, since it is larger than the sum of its proper divisors (63000092).

72000088 is a wasteful number, since it uses less digits than its factorization.

72000088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000017 (or 9000013 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 72000088 is about 8485.2865596867. The cubic root of 72000088 is about 416.0169340986.

The spelling of 72000088 in words is "seventy-two million, eighty-eight", and thus it is an aban number and an uban number.

Divisors: 1 2 4 8 9000011 18000022 36000044 72000088