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187913260484 = 2246978315121
BaseRepresentation
bin1010111100000010000…
…0001100110111000100
3122222000222221200220022
42233000200030313010
511034321243313414
6222154241154312
716401444234245
oct2570040146704
9588028850808
10187913260484
117276a155984
123050392b998
13149492077c1
149148b64ccc
154d4c2bd18e
hex2bc080cdc4

187913260484 has 6 divisors (see below), whose sum is σ = 328848205854. Its totient is φ = 93956630240.

The previous prime is 187913260427. The next prime is 187913260517. The reversal of 187913260484 is 484062319781.

It can be written as a sum of positive squares in only one way, i.e., 175286243584 + 12627016900 = 418672^2 + 112370^2 .

It is a super-2 number, since 2×1879132604842 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23489157557 + ... + 23489157564.

It is an arithmetic number, because the mean of its divisors is an integer number (54808034309).

Almost surely, 2187913260484 is an apocalyptic number.

It is an amenable number.

187913260484 is a deficient number, since it is larger than the sum of its proper divisors (140934945370).

187913260484 is a wasteful number, since it uses less digits than its factorization.

187913260484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46978315125 (or 46978315123 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 187913260484 in words is "one hundred eighty-seven billion, nine hundred thirteen million, two hundred sixty thousand, four hundred eighty-four".

Divisors: 1 2 4 46978315121 93956630242 187913260484