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7920010764 = 2233376919457
BaseRepresentation
bin1110110000001000…
…11100011000001100
3202102221220020022000
413120010130120030
5112210010321024
63345521152300
7400156660251
oct73004343014
922387806260
107920010764
1133a4704346
12165048b690
13992ab7903
14551c05428
15315499cc9
hex1d811c60c

7920010764 has 48 divisors (see below), whose sum is σ = 20539864800. Its totient is φ = 2639167488.

The previous prime is 7920010733. The next prime is 7920010781. The reversal of 7920010764 is 4670100297.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 397324 + ... + 416780.

It is an arithmetic number, because the mean of its divisors is an integer number (427913850).

Almost surely, 27920010764 is an apocalyptic number.

It is an amenable number.

7920010764 is an abundant number, since it is smaller than the sum of its proper divisors (12619854036).

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

7920010764 is a wasteful number, since it uses less digits than its factorization.

7920010764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23239 (or 23231 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 7920010764 is about 88994.4423208551. The cubic root of 7920010764 is about 1993.3118898551.

The spelling of 7920010764 in words is "seven billion, nine hundred twenty million, ten thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 3769 7538 11307 15076 19457 22614 33921 38914 45228 58371 67842 77828 101763 116742 135684 175113 203526 233484 350226 407052 525339 700452 1050678 2101356 73333433 146666866 220000299 293333732 440000598 660000897 880001196 1320001794 1980002691 2640003588 3960005382 7920010764