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52512736 = 252971797
BaseRepresentation
bin1100100001010…
…0011111100000
310122210220221011
43020110133200
5101420401421
65113310304
71205231233
oct310243740
9118726834
1052512736
1127707661
1215705394
13ab58033
146d8d41a
1549244e1
hex32147e0

52512736 has 48 divisors (see below), whose sum is σ = 108591840. Its totient is φ = 24962560.

The previous prime is 52512721. The next prime is 52512743. The reversal of 52512736 is 63721525.

It is a junction number, because it is equal to n+sod(n) for n = 52512698 and 52512707.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 65490 + ... + 66286.

It is an arithmetic number, because the mean of its divisors is an integer number (2262330).

Almost surely, 252512736 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 52512736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54295920).

52512736 is an abundant number, since it is smaller than the sum of its proper divisors (56079104).

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

52512736 is a wasteful number, since it uses less digits than its factorization.

52512736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 899 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 52512736 is about 7246.5671872963. The cubic root of 52512736 is about 374.4738957314.

The spelling of 52512736 in words is "fifty-two million, five hundred twelve thousand, seven hundred thirty-six".

Divisors: 1 2 4 8 16 29 32 58 71 116 142 232 284 464 568 797 928 1136 1594 2059 2272 3188 4118 6376 8236 12752 16472 23113 25504 32944 46226 56587 65888 92452 113174 184904 226348 369808 452696 739616 905392 1641023 1810784 3282046 6564092 13128184 26256368 52512736