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72010916 = 2259305131
BaseRepresentation
bin1000100101011…
…00110010100100
312000111112101222
410102230302210
5121413322131
611051235512
71533040235
oct422546244
9160445358
1072010916
113771495a
1220148b98
1311bc3c13
1497c708c
1564c687b
hex44acca4

72010916 has 12 divisors (see below), whose sum is σ = 128155440. Its totient is φ = 35395080.

The previous prime is 72010891. The next prime is 72010919. The reversal of 72010916 is 61901027.

It is not an unprimeable number, because it can be changed into a prime (72010919) by changing a digit.

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, 152330 + ... + 152801.

It is an arithmetic number, because the mean of its divisors is an integer number (10679620).

Almost surely, 272010916 is an apocalyptic number.

It is an amenable number.

72010916 is a deficient number, since it is larger than the sum of its proper divisors (56144524).

72010916 is a wasteful number, since it uses less digits than its factorization.

72010916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305194 (or 305192 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 72010916 is about 8485.9245813288. The cubic root of 72010916 is about 416.0377878026.

The spelling of 72010916 in words is "seventy-two million, ten thousand, nine hundred sixteen".

Divisors: 1 2 4 59 118 236 305131 610262 1220524 18002729 36005458 72010916