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102097913 = 414575449
BaseRepresentation
bin1100001010111…
…10001111111001
321010010010000012
412011132033321
5202114113123
614044151305
72346550361
oct605361771
9233103005
10102097913
11526a4745
122a238535
13181c9688
14d7b99a1
158e6b378
hex615e3f9

102097913 has 8 divisors (see below), whose sum is σ = 104836200. Its totient is φ = 99371520.

The previous prime is 102097889. The next prime is 102097927. The reversal of 102097913 is 319790201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 101344489 = 868^2 + 10067^2 .

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 102097913 - 28 = 102097657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102097913.

It is not an unprimeable number, because it can be changed into a prime (102097993) 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, 16013 + ... + 21461.

It is an arithmetic number, because the mean of its divisors is an integer number (13104525).

Almost surely, 2102097913 is an apocalyptic number.

It is an amenable number.

102097913 is a deficient number, since it is larger than the sum of its proper divisors (2738287).

102097913 is an equidigital number, since it uses as much as digits as its factorization.

102097913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 102097913 is about 10104.3511914422. The cubic root of 102097913 is about 467.3823288542.

The spelling of 102097913 in words is "one hundred two million, ninety-seven thousand, nine hundred thirteen".

Divisors: 1 41 457 5449 18737 223409 2490193 102097913