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52650857740 = 22513661306359
BaseRepresentation
bin110001000010001111…
…000101010100001100
312000220022212200211011
4301002033011110030
51330312104421430
640104254335004
73542510622655
oct610217052414
9160808780734
1052650857740
1120369044778
12a2547ba464
134c7100b5c0
14279681052c
15158246e22a
hexc423c550c

52650857740 has 48 divisors (see below), whose sum is σ = 119252468160. Its totient is φ = 19410842880.

The previous prime is 52650857729. The next prime is 52650857747. The reversal of 52650857740 is 4775805625.

It is a happy number.

It is a super-2 number, since 2×526508577402 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52650857747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18681 + ... + 325039.

It is an arithmetic number, because the mean of its divisors is an integer number (2484426420).

Almost surely, 252650857740 is an apocalyptic number.

It is an amenable number.

52650857740 is an abundant number, since it is smaller than the sum of its proper divisors (66601610420).

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

52650857740 is a wasteful number, since it uses less digits than its factorization.

52650857740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307042 (or 307040 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 52650857740 in words is "fifty-two billion, six hundred fifty million, eight hundred fifty-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 661 1322 2644 3305 6610 8593 13220 17186 34372 42965 85930 171860 306359 612718 1225436 1531795 3063590 3982667 6127180 7965334 15930668 19913335 39826670 79653340 202503299 405006598 810013196 1012516495 2025032990 2632542887 4050065980 5265085774 10530171548 13162714435 26325428870 52650857740