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52729768 = 2371372431
BaseRepresentation
bin1100100100100…
…1011110101000
310200012221122101
43021021132220
5101444323033
65122103144
71210124050
oct311113650
9120187571
1052729768
1127845723
12157aaab4
13ac02a60
147008560
15496897d
hex32497a8

52729768 has 32 divisors (see below), whose sum is σ = 121685760. Its totient is φ = 20859840.

The previous prime is 52729763. The next prime is 52729771. The reversal of 52729768 is 86792725.

It is not an unprimeable number, because it can be changed into a prime (52729763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35488 + ... + 36943.

It is an arithmetic number, because the mean of its divisors is an integer number (3802680).

Almost surely, 252729768 is an apocalyptic number.

It is an amenable number.

52729768 is an abundant number, since it is smaller than the sum of its proper divisors (68955992).

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

52729768 is a wasteful number, since it uses less digits than its factorization.

52729768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72457 (or 72453 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 52729768 is about 7261.5265612680. The cubic root of 52729768 is about 374.9890793857.

The spelling of 52729768 in words is "fifty-two million, seven hundred twenty-nine thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 72431 144862 289724 507017 579448 941603 1014034 1883206 2028068 3766412 4056136 6591221 7532824 13182442 26364884 52729768