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102580161 = 3237120939
BaseRepresentation
bin1100001110100…
…11111111000001
321011000121112020
412013103333001
5202230031121
614102352053
72353626345
oct607237701
9234017466
10102580161
11529a3aa2
122a42b629
1318338028
14d8a3625
1590141c6
hex61d3fc1

102580161 has 16 divisors (see below), whose sum is σ = 144737280. Its totient is φ = 64489040.

The previous prime is 102580141. The next prime is 102580187. The reversal of 102580161 is 161085201.

It is a cyclic number.

It is not a de Polignac number, because 102580161 - 25 = 102580129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102580141) 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, 5571 + ... + 15368.

It is an arithmetic number, because the mean of its divisors is an integer number (9046080).

Almost surely, 2102580161 is an apocalyptic number.

It is an amenable number.

102580161 is a deficient number, since it is larger than the sum of its proper divisors (42157119).

102580161 is a wasteful number, since it uses less digits than its factorization.

102580161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21036.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 102580161 is about 10128.1864615537. The cubic root of 102580161 is about 468.1170492166.

The spelling of 102580161 in words is "one hundred two million, five hundred eighty thousand, one hundred sixty-one".

Divisors: 1 3 23 69 71 213 1633 4899 20939 62817 481597 1444791 1486669 4460007 34193387 102580161