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268812530 = 2573109719
BaseRepresentation
bin10000000001011…
…100000011110010
3200201211002110122
4100001130003302
51022304000110
642401330242
76442604000
oct2001340362
9621732418
10268812530
11128812918
1276036982
13438cb48c
14279b5a70
15188ed255
hex1005c0f2

268812530 has 64 divisors (see below), whose sum is σ = 570240000. Its totient is φ = 91191744.

The previous prime is 268812529. The next prime is 268812547. The reversal of 268812530 is 35218862.

268812530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373511 + ... + 374229.

It is an arithmetic number, because the mean of its divisors is an integer number (8910000).

Almost surely, 2268812530 is an apocalyptic number.

268812530 is an abundant number, since it is smaller than the sum of its proper divisors (301427470).

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

268812530 is a wasteful number, since it uses less digits than its factorization.

268812530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 268812530 is about 16395.5033469546. The cubic root of 268812530 is about 645.3814861612.

The spelling of 268812530 in words is "two hundred sixty-eight million, eight hundred twelve thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 109 218 245 343 490 545 686 719 763 1090 1438 1526 1715 3430 3595 3815 5033 5341 7190 7630 10066 10682 25165 26705 35231 37387 50330 53410 70462 74774 78371 156742 176155 186935 246617 352310 373870 391855 493234 548597 783710 1097194 1233085 2466170 2742985 3840179 5485970 7680358 19200895 26881253 38401790 53762506 134406265 268812530