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102700782938 = 2134127957119
BaseRepresentation
bin101111110100101110…
…0011001010101011010
3100211002101122022221102
41133221130121111122
53140312400023223
6115102522111402
710264010152145
oct1375134312532
9324071568842
10102700782938
113a611a07316
1217aa234b562
1398b920b660
144d83a1905c
152a113c6928
hex17e971955a

102700782938 has 16 divisors (see below), whose sum is σ = 165941637120. Its totient is φ = 47388826416.

The previous prime is 102700782929. The next prime is 102700782941. The reversal of 102700782938 is 839287007201.

It is a super-5 number, since 5×1027007829385 (a number of 56 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102700782892 and 102700782901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371258 + ... + 585861.

It is an arithmetic number, because the mean of its divisors is an integer number (10371352320).

Almost surely, 2102700782938 is an apocalyptic number.

102700782938 is a deficient number, since it is larger than the sum of its proper divisors (63240854182).

102700782938 is a wasteful number, since it uses less digits than its factorization.

102700782938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961261.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 102700782938 in words is "one hundred two billion, seven hundred million, seven hundred eighty-two thousand, nine hundred thirty-eight".

Divisors: 1 2 13 26 4127 8254 53651 107302 957119 1914238 12442547 24885094 3950030113 7900060226 51350391469 102700782938