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252470727 = 32193197491
BaseRepresentation
bin11110000110001…
…10010111000111
3122121001211201200
433003012113013
51004113030402
641015153543
76153652155
oct1703062707
9577054650
10252470727
1111a570aa3
12706758b3
13403c9182
14257603d5
151727121c
hexf0c65c7

252470727 has 48 divisors (see below), whose sum is σ = 401157120. Its totient is φ = 152409600.

The previous prime is 252470717. The next prime is 252470731. The reversal of 252470727 is 727074252.

It is not a de Polignac number, because 252470727 - 26 = 252470663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252470691 and 252470700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252470717) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 513952 + ... + 514442.

It is an arithmetic number, because the mean of its divisors is an integer number (8357440).

Almost surely, 2252470727 is an apocalyptic number.

252470727 is a deficient number, since it is larger than the sum of its proper divisors (148686393).

252470727 is a wasteful number, since it uses less digits than its factorization.

252470727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 252470727 is about 15889.3274558743. The cubic root of 252470727 is about 632.0290062730.

The spelling of 252470727 in words is "two hundred fifty-two million, four hundred seventy thousand, seven hundred twenty-seven".

Divisors: 1 3 9 19 31 57 93 97 171 279 291 491 589 873 1473 1767 1843 3007 4419 5301 5529 9021 9329 15221 16587 27063 27987 45663 47627 57133 83961 136989 142881 171399 289199 428643 514197 867597 904913 1476437 2602791 2714739 4429311 8144217 13287933 28052303 84156909 252470727