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52375240 = 2356719543
BaseRepresentation
bin1100011111001…
…0111011001000
310122112221022201
43013302323020
5101402001430
65110325544
71204116331
oct307627310
9118487281
1052375240
1127623325
12156598b4
13ab0a588
146d55288
1548e88ca
hex31f2ec8

52375240 has 32 divisors (see below), whose sum is σ = 119609280. Its totient is φ = 20636352.

The previous prime is 52375207. The next prime is 52375243. The reversal of 52375240 is 4257325.

It is a junction number, because it is equal to n+sod(n) for n = 52375199 and 52375208.

It is not an unprimeable number, because it can be changed into a prime (52375243) 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, 7092 + ... + 12451.

It is an arithmetic number, because the mean of its divisors is an integer number (3737790).

Almost surely, 252375240 is an apocalyptic number.

It is an amenable number.

52375240 is an abundant number, since it is smaller than the sum of its proper divisors (67234040).

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

52375240 is a wasteful number, since it uses less digits than its factorization.

52375240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19621 (or 19617 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 52375240 is about 7237.0739943709. The cubic root of 52375240 is about 374.1467772050.

The spelling of 52375240 in words is "fifty-two million, three hundred seventy-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 67 134 268 335 536 670 1340 2680 19543 39086 78172 97715 156344 195430 390860 781720 1309381 2618762 5237524 6546905 10475048 13093810 26187620 52375240