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52515996 = 223132271483
BaseRepresentation
bin1100100001010…
…1010010011100
310122211002101220
43020111102130
5101421002441
65113333340
71205243601
oct310252234
9118732356
1052515996
112770a055
1215707250
13ab59670
146d906a8
154925466
hex321549c

52515996 has 48 divisors (see below), whose sum is σ = 132633984. Its totient is φ = 16076736.

The previous prime is 52515979. The next prime is 52515997. The reversal of 52515996 is 69951525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34671 + ... + 36153.

It is an arithmetic number, because the mean of its divisors is an integer number (2763208).

Almost surely, 252515996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52515996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66316992).

52515996 is an abundant number, since it is smaller than the sum of its proper divisors (80117988).

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

52515996 is a wasteful number, since it uses less digits than its factorization.

52515996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1728 counting only the distinct ones).

The product of its digits is 121500, while the sum is 42.

The square root of 52515996 is about 7246.7921178960. The cubic root of 52515996 is about 374.4816447065.

The spelling of 52515996 in words is "fifty-two million, five hundred fifteen thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 227 454 681 908 1362 1483 2724 2951 2966 4449 5902 5932 8853 8898 11804 17706 17796 19279 35412 38558 57837 77116 115674 231348 336641 673282 1009923 1346564 2019846 4039692 4376333 8752666 13128999 17505332 26257998 52515996