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252164155 = 5167301993
BaseRepresentation
bin11110000011110…
…11100000111011
3122120111021012011
433001323200323
51004023223110
641004430351
76151234315
oct1701734073
9576437164
10252164155
1111a381731
12705483b7
134031c779
14256c07b5
151721048a
hexf07b83b

252164155 has 8 divisors (see below), whose sum is σ = 304409952. Its totient is φ = 200522688.

The previous prime is 252164147. The next prime is 252164183. The reversal of 252164155 is 551461252.

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 252164155 - 23 = 252164147 is a prime.

It is a super-2 number, since 2×2521641552 = 127173522133728050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150162 + ... + 151831.

It is an arithmetic number, because the mean of its divisors is an integer number (38051244).

Almost surely, 2252164155 is an apocalyptic number.

252164155 is a deficient number, since it is larger than the sum of its proper divisors (52245797).

252164155 is a wasteful number, since it uses less digits than its factorization.

252164155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302165.

The product of its digits is 12000, while the sum is 31.

The square root of 252164155 is about 15879.6774211569. The cubic root of 252164155 is about 631.7730810554.

The spelling of 252164155 in words is "two hundred fifty-two million, one hundred sixty-four thousand, one hundred fifty-five".

Divisors: 1 5 167 835 301993 1509965 50432831 252164155