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6638327872124 = 2213618231254257
BaseRepresentation
bin110000010011001101100…
…1011001011101001111100
3212111121200111001020122212
41200212123023023221330
51332230243413401444
622041334500355552
71253413644621464
oct140463313135174
925447614036585
106638327872124
11212a332028623
128b26766a5bb8
13391cb7801880
1418d422532ba4
15b7a28ae219e
hex6099b2cba7c

6638327872124 has 48 divisors (see below), whose sum is σ = 12717383077056. Its totient is φ = 3013238707200.

The previous prime is 6638327872049. The next prime is 6638327872147. The reversal of 6638327872124 is 4212787238366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25981604 + ... + 26235860.

It is an arithmetic number, because the mean of its divisors is an integer number (264945480772).

Almost surely, 26638327872124 is an apocalyptic number.

It is an amenable number.

6638327872124 is a deficient number, since it is larger than the sum of its proper divisors (6079055204932).

6638327872124 is a wasteful number, since it uses less digits than its factorization.

6638327872124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262566 (or 262564 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 59.

The spelling of 6638327872124 in words is "six trillion, six hundred thirty-eight billion, three hundred twenty-seven million, eight hundred seventy-two thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 61 122 244 793 1586 3172 8231 16462 32924 107003 214006 254257 428012 502091 508514 1004182 1017028 2008364 3305341 6527183 6610682 13054366 13221364 15509677 26108732 31019354 62038708 201625801 403251602 806503204 2092789367 4185578734 8371157468 27206261771 54412523542 108825047084 127660151387 255320302774 510640605548 1659581968031 3319163936062 6638327872124