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253665201 = 3421720051
BaseRepresentation
bin11110001111010…
…01111110110001
3122200022112020110
433013221332301
51004414241301
641100531533
76200055456
oct1707517661
9580275213
10253665201
11120207469
1270b50ba9
1340726a6a
142599182d
151740a0d6
hexf1e9fb1

253665201 has 8 divisors (see below), whose sum is σ = 338317344. Its totient is φ = 169061600.

The previous prime is 253665187. The next prime is 253665239. The reversal of 253665201 is 102566352.

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 253665201 - 214 = 253648817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253665241) 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, 2626 + ... + 22676.

It is an arithmetic number, because the mean of its divisors is an integer number (42289668).

Almost surely, 2253665201 is an apocalyptic number.

It is an amenable number.

253665201 is a deficient number, since it is larger than the sum of its proper divisors (84652143).

253665201 is a wasteful number, since it uses less digits than its factorization.

253665201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24271.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 253665201 is about 15926.8704082127. The cubic root of 253665201 is about 633.0241774293.

The spelling of 253665201 in words is "two hundred fifty-three million, six hundred sixty-five thousand, two hundred one".

Divisors: 1 3 4217 12651 20051 60153 84555067 253665201