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52156233 = 3212745631
BaseRepresentation
bin1100011011110…
…1011101001001
310122010210220100
43012331131021
5101322444413
65101520013
71202214663
oct306753511
9118123810
1052156233
1127493828
1215573009
13aa6199c
146cd9533
1548a3a73
hex31bd749

52156233 has 12 divisors (see below), whose sum is σ = 75931648. Its totient is φ = 34496280.

The previous prime is 52156211. The next prime is 52156241. The reversal of 52156233 is 33265125.

It is not a de Polignac number, because 52156233 - 216 = 52090697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52156197 and 52156206.

It is not an unprimeable number, because it can be changed into a prime (52156283) 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, 21673 + ... + 23958.

Almost surely, 252156233 is an apocalyptic number.

It is an amenable number.

52156233 is a deficient number, since it is larger than the sum of its proper divisors (23775415).

52156233 is a wasteful number, since it uses less digits than its factorization.

52156233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45764 (or 45761 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 52156233 is about 7221.9272358561. The cubic root of 52156233 is about 373.6245505382.

The spelling of 52156233 in words is "fifty-two million, one hundred fifty-six thousand, two hundred thirty-three".

Divisors: 1 3 9 127 381 1143 45631 136893 410679 5795137 17385411 52156233