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75307672 = 23116114029
BaseRepresentation
bin1000111110100…
…01101010011000
312020201000201001
410133101222120
5123234321142
611250034344
71603050616
oct437215230
9166630631
1075307672
1139566850
12212789b4
13127a966b
14a0046b6
1569285b7
hex47d1a98

75307672 has 32 divisors (see below), whose sum is σ = 156574800. Its totient is φ = 33667200.

The previous prime is 75307669. The next prime is 75307703. The reversal of 75307672 is 27670357.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1647 + ... + 12382.

Almost surely, 275307672 is an apocalyptic number.

It is an amenable number.

75307672 is an abundant number, since it is smaller than the sum of its proper divisors (81267128).

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

75307672 is a wasteful number, since it uses less digits than its factorization.

75307672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14107 (or 14103 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 75307672 is about 8677.9993085964. Note that the first 3 decimals coincide. The cubic root of 75307672 is about 422.2922139227.

The spelling of 75307672 in words is "seventy-five million, three hundred seven thousand, six hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 61 88 122 244 488 671 1342 2684 5368 14029 28058 56116 112232 154319 308638 617276 855769 1234552 1711538 3423076 6846152 9413459 18826918 37653836 75307672