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102166807 = 1394491637
BaseRepresentation
bin1100001011011…
…11000100010111
321010020121111211
412011233010113
5202123314212
614045442251
72350255261
oct605570427
9233217454
10102166807
1152741486
122a270387
1318221b42
14d7d6b31
158e819a7
hex616f117

102166807 has 8 divisors (see below), whose sum is σ = 103194000. Its totient is φ = 101144064.

The previous prime is 102166777. The next prime is 102166811. The reversal of 102166807 is 708661201.

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 102166807 - 211 = 102164759 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 (102166817) 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, 61593 + ... + 63229.

It is an arithmetic number, because the mean of its divisors is an integer number (12899250).

Almost surely, 2102166807 is an apocalyptic number.

102166807 is a deficient number, since it is larger than the sum of its proper divisors (1027193).

102166807 is a wasteful number, since it uses less digits than its factorization.

102166807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 102166807 is about 10107.7597419013. The cubic root of 102166807 is about 467.4874325313.

The spelling of 102166807 in words is "one hundred two million, one hundred sixty-six thousand, eight hundred seven".

Divisors: 1 139 449 1637 62411 227543 735013 102166807