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252933630 = 23523813541
BaseRepresentation
bin11110001001101…
…11010111111110
3122121221100201020
433010313113332
51004222334010
641033125010
76160620555
oct1704672776
9577840636
10252933630
1111a857864
1270859766
134052ba91
1425840d9c
1517313470
hexf1375fe

252933630 has 32 divisors (see below), whose sum is σ = 607467168. Its totient is φ = 67401600.

The previous prime is 252933617. The next prime is 252933631. The reversal of 252933630 is 36339252.

It is a junction number, because it is equal to n+sod(n) for n = 252933591 and 252933600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252933631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69660 + ... + 73200.

It is an arithmetic number, because the mean of its divisors is an integer number (18983349).

Almost surely, 2252933630 is an apocalyptic number.

252933630 is an abundant number, since it is smaller than the sum of its proper divisors (354533538).

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

252933630 is a wasteful number, since it uses less digits than its factorization.

252933630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932.

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 252933630 is about 15903.8872606668. The cubic root of 252933630 is about 632.4150437639.

The spelling of 252933630 in words is "two hundred fifty-two million, nine hundred thirty-three thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2381 3541 4762 7082 7143 10623 11905 14286 17705 21246 23810 35410 35715 53115 71430 106230 8431121 16862242 25293363 42155605 50586726 84311210 126466815 252933630