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72676988 = 2218169247
BaseRepresentation
bin1000101010011…
…11011001111100
312001202101002022
410111033121330
5122101130423
611113415312
71541513156
oct425173174
9161671068
1072676988
113802a32a
122040a538
1312098147
14991bad6
1565a8dc8
hex454f67c

72676988 has 6 divisors (see below), whose sum is σ = 127184736. Its totient is φ = 36338492.

The previous prime is 72676979. The next prime is 72676999. The reversal of 72676988 is 88967627.

It is a happy number.

It is a super-5 number, since 5×726769885 (a number of 41 digits) contains 55555 as substring.

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, 9084620 + ... + 9084627.

It is an arithmetic number, because the mean of its divisors is an integer number (21197456).

Almost surely, 272676988 is an apocalyptic number.

It is an amenable number.

72676988 is a deficient number, since it is larger than the sum of its proper divisors (54507748).

72676988 is a wasteful number, since it uses less digits than its factorization.

72676988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18169251 (or 18169249 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 72676988 is about 8525.0799409742. The cubic root of 72676988 is about 417.3165804796.

The spelling of 72676988 in words is "seventy-two million, six hundred seventy-six thousand, nine hundred eighty-eight".

Divisors: 1 2 4 18169247 36338494 72676988