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72985008 = 24313910939
BaseRepresentation
bin1000101100110…
…10100110110000
312002100000121110
410112122212300
5122141010013
611124153320
71544235165
oct426324660
9162300543
1072985008
113821a798
1220538840
13121753c5
14999c06c
15661a2c3
hex459a9b0

72985008 has 40 divisors (see below), whose sum is σ = 189918400. Its totient is φ = 24151104.

The previous prime is 72985007. The next prime is 72985009. The reversal of 72985008 is 80058927.

It is an interprime number because it is at equal distance from previous prime (72985007) and next prime (72985009).

It is a super-2 number, since 2×729850082 = 10653622785520128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72985007) 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, 1203 + ... + 12141.

It is an arithmetic number, because the mean of its divisors is an integer number (4747960).

Almost surely, 272985008 is an apocalyptic number.

It is an amenable number.

72985008 is an abundant number, since it is smaller than the sum of its proper divisors (116933392).

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

72985008 is a wasteful number, since it uses less digits than its factorization.

72985008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089 (or 11083 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 72985008 is about 8543.1263598287. The cubic root of 72985008 is about 417.9053073354.

The spelling of 72985008 in words is "seventy-two million, nine hundred eighty-five thousand, eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 139 278 417 556 834 1112 1668 2224 3336 6672 10939 21878 32817 43756 65634 87512 131268 175024 262536 525072 1520521 3041042 4561563 6082084 9123126 12164168 18246252 24328336 36492504 72985008