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102323986 = 21711326633
BaseRepresentation
bin1100001100101…
…01011100010010
321010112121010021
412012111130102
5202143331421
614053054054
72351511442
oct606253422
9233477107
10102323986
1152839586
122a32732a
131827854b
14d838122
158eb3341
hex6195712

102323986 has 16 divisors (see below), whose sum is σ = 163958904. Its totient is φ = 47724544.

The previous prime is 102323953. The next prime is 102323989. The reversal of 102323986 is 689323201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97121025 + 5202961 = 9855^2 + 2281^2 .

It is a super-2 number, since 2×1023239862 = 20940396221856392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (102323989) 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, 9475 + ... + 17158.

Almost surely, 2102323986 is an apocalyptic number.

102323986 is a deficient number, since it is larger than the sum of its proper divisors (61634918).

102323986 is a wasteful number, since it uses less digits than its factorization.

102323986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26765.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 102323986 is about 10115.5319187871. The cubic root of 102323986 is about 467.7270457677.

The spelling of 102323986 in words is "one hundred two million, three hundred twenty-three thousand, nine hundred eighty-six".

Divisors: 1 2 17 34 113 226 1921 3842 26633 53266 452761 905522 3009529 6019058 51161993 102323986