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52681930 = 2571495051
BaseRepresentation
bin1100100011110…
…1110011001010
310200010112000121
43020331303022
5101441310210
65121053454
71206534430
oct310756312
9120115017
1052681930
1127812794
121578728a
13abb7052
146dd4d50
1549596da
hex323dcca

52681930 has 32 divisors (see below), whose sum is σ = 109123200. Its totient is φ = 17937600.

The previous prime is 52681921. The next prime is 52681931. The reversal of 52681930 is 3918625.

It is not an unprimeable number, because it can be changed into a prime (52681931) 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, 7905 + ... + 12955.

It is an arithmetic number, because the mean of its divisors is an integer number (3410100).

Almost surely, 252681930 is an apocalyptic number.

52681930 is an abundant number, since it is smaller than the sum of its proper divisors (56441270).

52681930 is a wasteful number, since it uses less digits than its factorization.

52681930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 52681930 is about 7258.2318783572. The cubic root of 52681930 is about 374.8756446925.

The spelling of 52681930 in words is "fifty-two million, six hundred eighty-one thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 149 298 745 1043 1490 2086 5051 5215 10102 10430 25255 35357 50510 70714 176785 353570 752599 1505198 3762995 5268193 7525990 10536386 26340965 52681930