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102982135939 = 798972720147
BaseRepresentation
bin101111111101000110…
…1101011000010000011
3100211211000001112200221
41133322031223002003
53141401411322224
6115150452323511
710303664466244
oct1377215530203
9324730045627
10102982135939
113a746804a61
1217b60613597
1399325aab17
144dad136ccb
152a2ae506e4
hex17fa36b083

102982135939 has 16 divisors (see below), whose sum is σ = 105607756800. Its totient is φ = 100392836544.

The previous prime is 102982135909. The next prime is 102982135969. The reversal of 102982135939 is 939531289201.

It is an interprime number because it is at equal distance from previous prime (102982135909) and next prime (102982135969).

It is a cyclic number.

It is not a de Polignac number, because 102982135939 - 215 = 102982103171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102982135909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5101464 + ... + 5121610.

It is an arithmetic number, because the mean of its divisors is an integer number (6600484800).

Almost surely, 2102982135939 is an apocalyptic number.

102982135939 is a deficient number, since it is larger than the sum of its proper divisors (2625620861).

102982135939 is an equidigital number, since it uses as much as digits as its factorization.

102982135939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21042.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The spelling of 102982135939 in words is "one hundred two billion, nine hundred eighty-two million, one hundred thirty-five thousand, nine hundred thirty-nine".

Divisors: 1 79 89 727 7031 20147 57433 64703 1591613 1793083 5111537 14646869 141653557 1157102651 1303571341 102982135939