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102720882684 = 22379713990697
BaseRepresentation
bin101111110101010100…
…1000100011111111100
3100211010210110111121110
41133222221010133330
53140333021221214
6115104521002020
710264343045040
oct1375251043774
9324123414543
10102720882684
113a622295582
1217aa9023310
1398c04282b4
144d8656c020
152a13047159
hex17eaa447fc

102720882684 has 96 divisors (see below), whose sum is σ = 278740349440. Its totient is φ = 28836974592.

The previous prime is 102720882679. The next prime is 102720882727. The reversal of 102720882684 is 486288027201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1087224 + ... + 1177920.

Almost surely, 2102720882684 is an apocalyptic number.

102720882684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102720882684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139370174720).

102720882684 is an abundant number, since it is smaller than the sum of its proper divisors (176019466756).

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

102720882684 is a wasteful number, since it uses less digits than its factorization.

102720882684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90947 (or 90945 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 102720882684 in words is "one hundred two billion, seven hundred twenty million, eight hundred eighty-two thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 97 139 194 278 291 388 417 556 582 679 834 973 1164 1358 1668 1946 2037 2716 2919 3892 4074 5838 8148 11676 13483 26966 40449 53932 80898 90697 94381 161796 181394 188762 272091 283143 362788 377524 544182 566286 634879 1088364 1132572 1269758 1904637 2539516 3809274 7618548 8797609 12606883 17595218 25213766 26392827 35190436 37820649 50427532 52785654 61583263 75641298 88248181 105571308 123166526 151282596 176496362 184749789 246333052 264744543 352992724 369499578 529489086 738999156 1058978172 1222867651 2445735302 3668602953 4891470604 7337205906 8560073557 14674411812 17120147114 25680220671 34240294228 51360441342 102720882684