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52422972 = 22371514133
BaseRepresentation
bin1100011111111…
…0100100111100
310122122100210120
43013332210330
5101410013342
65111334540
71204405440
oct307764474
9118570716
1052422972
1127656178
1215681450
13ab26214
146d68820
154907aec
hex31fe93c

52422972 has 48 divisors (see below), whose sum is σ = 140754432. Its totient is φ = 14875200.

The previous prime is 52422967. The next prime is 52423027. The reversal of 52422972 is 27922425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10618 + ... + 14750.

It is an arithmetic number, because the mean of its divisors is an integer number (2932384).

Almost surely, 252422972 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 52422972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70377216).

52422972 is an abundant number, since it is smaller than the sum of its proper divisors (88331460).

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

52422972 is a wasteful number, since it uses less digits than its factorization.

52422972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298 (or 4296 counting only the distinct ones).

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

The square root of 52422972 is about 7240.3709849703. The cubic root of 52422972 is about 374.2604018333.

The spelling of 52422972 in words is "fifty-two million, four hundred twenty-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 151 302 453 604 906 1057 1812 2114 3171 4133 4228 6342 8266 12399 12684 16532 24798 28931 49596 57862 86793 115724 173586 347172 624083 1248166 1872249 2496332 3744498 4368581 7488996 8737162 13105743 17474324 26211486 52422972