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52172252 = 221117193671
BaseRepresentation
bin1100011100000…
…1010111011100
310122011121212122
43013001113130
5101324003002
65102122112
71202312456
oct307012734
9118147778
1052172252
11274a4870
1215580338
13aa69072
146d012d6
1548a86a2
hex31c15dc

52172252 has 48 divisors (see below), whose sum is σ = 111041280. Its totient is φ = 21139200.

The previous prime is 52172251. The next prime is 52172261. The reversal of 52172252 is 25227125.

52172252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52172251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12377 + ... + 16047.

It is an arithmetic number, because the mean of its divisors is an integer number (2313360).

Almost surely, 252172252 is an apocalyptic number.

It is an amenable number.

52172252 is an abundant number, since it is smaller than the sum of its proper divisors (58869028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52172252 is a wasteful number, since it uses less digits than its factorization.

52172252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722 (or 3720 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 52172252 is about 7223.0362037027. The cubic root of 52172252 is about 373.6627976705.

Adding to 52172252 its reverse (25227125), we get a palindrome (77399377).

The spelling of 52172252 in words is "fifty-two million, one hundred seventy-two thousand, two hundred fifty-two".

Divisors: 1 2 4 11 17 19 22 34 38 44 68 76 187 209 323 374 418 646 748 836 1292 3553 3671 7106 7342 14212 14684 40381 62407 69749 80762 124814 139498 161524 249628 278996 686477 767239 1185733 1372954 1534478 2371466 2745908 3068956 4742932 13043063 26086126 52172252