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102688512797 = 1326330034663
BaseRepresentation
bin101111110100010110…
…1100101101100011101
3100211001112112221110202
41133220231211230131
53140301224402142
6115101403113245
710263500646143
oct1375055455435
9324045487422
10102688512797
113a605a96602
1217a9a212825
1398b6803710
144d82143593
152a102a1032
hex17e8b65b1d

102688512797 has 8 divisors (see below), whose sum is σ = 111008118144. Its totient is φ = 94428977328.

The previous prime is 102688512791. The next prime is 102688512803. The reversal of 102688512797 is 797215886201.

It is an interprime number because it is at equal distance from previous prime (102688512791) and next prime (102688512803).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102688512797 - 212 = 102688508701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102688512791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15013913 + ... + 15020750.

It is an arithmetic number, because the mean of its divisors is an integer number (13876014768).

Almost surely, 2102688512797 is an apocalyptic number.

It is an amenable number.

102688512797 is a deficient number, since it is larger than the sum of its proper divisors (8319605347).

102688512797 is a wasteful number, since it uses less digits than its factorization.

102688512797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30034939.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 102688512797 in words is "one hundred two billion, six hundred eighty-eight million, five hundred twelve thousand, seven hundred ninety-seven".

Divisors: 1 13 263 3419 30034663 390450619 7899116369 102688512797