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102065804 = 22145917489
BaseRepresentation
bin1100001010101…
…10011010001100
321010001110221222
412011112122030
5202112101204
614043342512
72346354641
oct605263214
9233043858
10102065804
1152682605
122a221a38
13181b7b89
14d7abdc8
158e61abe
hex615668c

102065804 has 12 divisors (see below), whose sum is σ = 178747800. Its totient is φ = 50995008.

The previous prime is 102065797. The next prime is 102065809. The reversal of 102065804 is 408560201.

It is not an unprimeable number, because it can be changed into a prime (102065809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2909 + ... + 14580.

It is an arithmetic number, because the mean of its divisors is an integer number (14895650).

Almost surely, 2102065804 is an apocalyptic number.

It is an amenable number.

102065804 is a deficient number, since it is larger than the sum of its proper divisors (76681996).

102065804 is a wasteful number, since it uses less digits than its factorization.

102065804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18952 (or 18950 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 102065804 is about 10102.7621965480. The cubic root of 102065804 is about 467.3333276806. Note that the first 4 decimals are identical.

The spelling of 102065804 in words is "one hundred two million, sixty-five thousand, eight hundred four".

Divisors: 1 2 4 1459 2918 5836 17489 34978 69956 25516451 51032902 102065804