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52129338 = 2315755339
BaseRepresentation
bin1100011011011…
…0111000111010
310122002110000020
43012312320322
5101321114323
65101151310
71202043402
oct306667072
9118073006
1052129338
11274755a8
121555b536
13aa52681
146ccd802
15489aae3
hex31b6e3a

52129338 has 16 divisors (see below), whose sum is σ = 104924640. Its totient is φ = 17265456.

The previous prime is 52129333. The next prime is 52129351. The reversal of 52129338 is 83392125.

It is a junction number, because it is equal to n+sod(n) for n = 52129299 and 52129308.

It is not an unprimeable number, because it can be changed into a prime (52129333) 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, 26728 + ... + 28611.

It is an arithmetic number, because the mean of its divisors is an integer number (6557790).

Almost surely, 252129338 is an apocalyptic number.

52129338 is an abundant number, since it is smaller than the sum of its proper divisors (52795302).

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

52129338 is a wasteful number, since it uses less digits than its factorization.

52129338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55501.

The product of its digits is 12960, while the sum is 33.

The square root of 52129338 is about 7220.0649581565. The cubic root of 52129338 is about 373.5603181385.

The spelling of 52129338 in words is "fifty-two million, one hundred twenty-nine thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 157 314 471 942 55339 110678 166017 332034 8688223 17376446 26064669 52129338