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52146155 = 561170971
BaseRepresentation
bin1100011011101…
…0111111101011
310122010022002002
43012322333223
5101322134110
65101401215
71202143415
oct306727753
9118108062
1052146155
11274871a6
121556920b
13aa5a219
146cd59b5
1548a0aa5
hex31bafeb

52146155 has 8 divisors (see below), whose sum is σ = 63601584. Its totient is φ = 41032800.

The previous prime is 52146139. The next prime is 52146169. The reversal of 52146155 is 55164125.

It is a happy number.

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

It is not a de Polignac number, because 52146155 - 24 = 52146139 is a prime.

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, 85181 + ... + 85790.

It is an arithmetic number, because the mean of its divisors is an integer number (7950198).

Almost surely, 252146155 is an apocalyptic number.

52146155 is a deficient number, since it is larger than the sum of its proper divisors (11455429).

52146155 is a wasteful number, since it uses less digits than its factorization.

52146155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171037.

The product of its digits is 6000, while the sum is 29.

The square root of 52146155 is about 7221.2294659566. The cubic root of 52146155 is about 373.6004841863.

The spelling of 52146155 in words is "fifty-two million, one hundred forty-six thousand, one hundred fifty-five".

Divisors: 1 5 61 305 170971 854855 10429231 52146155