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102713891 = 7108713499
BaseRepresentation
bin1100001111101…
…00101000100011
321011021101222012
412013310220203
5202243321031
614105303135
72355024260
oct607645043
9234241865
10102713891
1152a85515
122a494aab
1318383b67
14d8da267
15903db2b
hex61f4a23

102713891 has 8 divisors (see below), whose sum is σ = 117504000. Its totient is φ = 87952968.

The previous prime is 102713857. The next prime is 102713899. The reversal of 102713891 is 198317201.

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 102713891 - 26 = 102713827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102713899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860 + ... + 14358.

It is an arithmetic number, because the mean of its divisors is an integer number (14688000).

Almost surely, 2102713891 is an apocalyptic number.

102713891 is a deficient number, since it is larger than the sum of its proper divisors (14790109).

102713891 is a wasteful number, since it uses less digits than its factorization.

102713891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14593.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 102713891 is about 10134.7861842271. The cubic root of 102713891 is about 468.3203832349.

The spelling of 102713891 in words is "one hundred two million, seven hundred thirteen thousand, eight hundred ninety-one".

Divisors: 1 7 1087 7609 13499 94493 14673413 102713891