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102361025 = 5213314957
BaseRepresentation
bin1100001100111…
…10011111000001
321010121110221002
412012132133001
5202201023100
614053541345
72352024434
oct606363701
9233543832
10102361025
1152864398
122a344855
131828c370
14d84781b
158ebe2d5
hex619e7c1

102361025 has 12 divisors (see below), whose sum is σ = 136691772. Its totient is φ = 75589440.

The previous prime is 102361019. The next prime is 102361031. The reversal of 102361025 is 520163201.

It is an interprime number because it is at equal distance from previous prime (102361019) and next prime (102361031).

It can be written as a sum of positive squares in 6 ways, for example, as 30924721 + 71436304 = 5561^2 + 8452^2 .

It is not a de Polignac number, because 102361025 - 24 = 102361009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102360988 and 102361006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157154 + ... + 157803.

It is an arithmetic number, because the mean of its divisors is an integer number (11390981).

Almost surely, 2102361025 is an apocalyptic number.

It is an amenable number.

102361025 is a deficient number, since it is larger than the sum of its proper divisors (34330747).

102361025 is a wasteful number, since it uses less digits than its factorization.

102361025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314980 (or 314975 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 102361025 is about 10117.3625515744. The cubic root of 102361025 is about 467.7834745447.

The spelling of 102361025 in words is "one hundred two million, three hundred sixty-one thousand, twenty-five".

Divisors: 1 5 13 25 65 325 314957 1574785 4094441 7873925 20472205 102361025