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252075161 = 1329715377
BaseRepresentation
bin11110000011001…
…01110010011001
3122120022202010002
433001211302121
51004012401121
641002502345
76150414002
oct1701456231
9576282102
10252075161
1111a320888
12705049b5
13402bb100
142569a1a9
15171e3e0b
hexf065c99

252075161 has 12 divisors (see below), whose sum is σ = 275789052. Its totient is φ = 230270976.

The previous prime is 252075157. The next prime is 252075179. The reversal of 252075161 is 161570252.

252075161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 250000 + 251825161 = 500^2 + 15869^2 .

It is not a de Polignac number, because 252075161 - 22 = 252075157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252075151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8705 + ... + 24081.

It is an arithmetic number, because the mean of its divisors is an integer number (22982421).

Almost surely, 2252075161 is an apocalyptic number.

It is an amenable number.

252075161 is a deficient number, since it is larger than the sum of its proper divisors (23713891).

252075161 is a wasteful number, since it uses less digits than its factorization.

252075161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15500 (or 15487 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 252075161 is about 15876.8750388734. The cubic root of 252075161 is about 631.6987503361.

The spelling of 252075161 in words is "two hundred fifty-two million, seventy-five thousand, one hundred sixty-one".

Divisors: 1 13 97 169 1261 15377 16393 199901 1491569 2598713 19390397 252075161