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52623870 = 23513592287
BaseRepresentation
bin1100100010111…
…1100111111110
310200000120101020
43020233213332
5101432430440
65115525010
71206203235
oct310574776
9120016336
1052623870
1127783102
1215759766
13ab967b0
146dbbb1c
1549473d0
hex322f9fe

52623870 has 64 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 12728448.

The previous prime is 52623853. The next prime is 52623881. The reversal of 52623870 is 7832625.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21867 + ... + 24153.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 252623870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52623870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69189120).

52623870 is an abundant number, since it is smaller than the sum of its proper divisors (85754370).

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

52623870 is a wasteful number, since it uses less digits than its factorization.

52623870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 52623870 is about 7254.2311791120. The cubic root of 52623870 is about 374.7378790452.

The spelling of 52623870 in words is "fifty-two million, six hundred twenty-three thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 59 65 78 118 130 177 195 295 354 390 590 767 885 1534 1770 2287 2301 3835 4574 4602 6861 7670 11435 11505 13722 22870 23010 29731 34305 59462 68610 89193 134933 148655 178386 269866 297310 404799 445965 674665 809598 891930 1349330 1754129 2023995 3508258 4047990 5262387 8770645 10524774 17541290 26311935 52623870