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268318530 = 23253319007
BaseRepresentation
bin11111111111000…
…11011101000010
3200200212222211100
433333203131002
51022142143110
642342555230
76435445524
oct1777433502
9620788740
10268318530
11128505757
1275a38b16
134378767c
14278c7a14
1518851bc0
hexffe3742

268318530 has 48 divisors (see below), whose sum is σ = 699813504. Its totient is φ = 71327520.

The previous prime is 268318517. The next prime is 268318541. The reversal of 268318530 is 35813862.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25287 + ... + 34293.

It is an arithmetic number, because the mean of its divisors is an integer number (14579448).

Almost surely, 2268318530 is an apocalyptic number.

268318530 is an abundant number, since it is smaller than the sum of its proper divisors (431494974).

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

268318530 is a wasteful number, since it uses less digits than its factorization.

268318530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9351 (or 9348 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 268318530 is about 16380.4313130027. The cubic root of 268318530 is about 644.9859019814.

The spelling of 268318530 in words is "two hundred sixty-eight million, three hundred eighteen thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 331 662 993 1655 1986 2979 3310 4965 5958 9007 9930 14895 18014 27021 29790 45035 54042 81063 90070 135105 162126 270210 405315 810630 2981317 5962634 8943951 14906585 17887902 26831853 29813170 44719755 53663706 89439510 134159265 268318530