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7250813988 = 22311257213737
BaseRepresentation
bin1101100000010111…
…01010010000100100
3200201022200111220020
412300023222100210
5104322202021423
63155254035140
7344452621245
oct66013522044
920638614806
107250813988
113090993960
1214a4348ab0
138b7271ca2
144cada8ccc
152c685e4e3
hex1b02ea424

7250813988 has 48 divisors (see below), whose sum is σ = 18528519744. Its totient is φ = 2188656640.

The previous prime is 7250813981. The next prime is 7250813989. The reversal of 7250813988 is 8893180527.

It is a self number, because there is not a number n which added to its sum of digits gives 7250813988.

It is not an unprimeable number, because it can be changed into a prime (7250813981) by changing a digit.

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, 72945 + ... + 140792.

It is an arithmetic number, because the mean of its divisors is an integer number (386010828).

Almost surely, 27250813988 is an apocalyptic number.

It is an amenable number.

7250813988 is an abundant number, since it is smaller than the sum of its proper divisors (11277705756).

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

7250813988 is a wasteful number, since it uses less digits than its factorization.

7250813988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214012 (or 214010 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 7250813988 is about 85151.7115975950. The cubic root of 7250813988 is about 1935.5107508707.

The spelling of 7250813988 in words is "seven billion, two hundred fifty million, eight hundred thirteen thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 257 514 771 1028 1542 2827 3084 5654 8481 11308 16962 33924 213737 427474 641211 854948 1282422 2351107 2564844 4702214 7053321 9404428 14106642 28213284 54930409 109860818 164791227 219721636 329582454 604234499 659164908 1208468998 1812703497 2416937996 3625406994 7250813988