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102161201 = 277397929
BaseRepresentation
bin1100001011011…
…01101100110001
321010020022211012
412011231230301
5202123124301
614045400305
72350233032
oct605555461
9233208735
10102161201
115273824a
122a269095
131821c41c
14d7d4a89
158e7eebb
hex616db31

102161201 has 8 divisors (see below), whose sum is σ = 102898920. Its totient is φ = 101426688.

The previous prime is 102161183. The next prime is 102161209.

102161201 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 50176 + 102111025 = 224^2 + 10105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102161201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102161209) 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, 109505 + ... + 110433.

It is an arithmetic number, because the mean of its divisors is an integer number (12862365).

Almost surely, 2102161201 is an apocalyptic number.

It is an amenable number.

102161201 is a deficient number, since it is larger than the sum of its proper divisors (737719).

102161201 is an equidigital number, since it uses as much as digits as its factorization.

102161201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 102161201 is about 10107.4824264008. The cubic root of 102161201 is about 467.4788818661.

The spelling of 102161201 in words is "one hundred two million, one hundred sixty-one thousand, two hundred one".

Divisors: 1 277 397 929 109969 257333 368813 102161201