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313557312 = 26331139379
BaseRepresentation
bin10010101100001…
…000000101000000
3210212000100202210
4102230020011000
51120232313222
651040342120
710525123155
oct2254100500
9725010683
10313557312
11150aa4282
1289014940
134cc66893
142d90222c
151c7dad0c
hex12b08140

313557312 has 112 divisors (see below), whose sum is σ = 864819200. Its totient is φ = 100154880.

The previous prime is 313557311. The next prime is 313557319. The reversal of 313557312 is 213755313.

It is a self number, because there is not a number n which added to its sum of digits gives 313557312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313557311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 827139 + ... + 827517.

It is an arithmetic number, because the mean of its divisors is an integer number (7721600).

Almost surely, 2313557312 is an apocalyptic number.

313557312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313557312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432409600).

313557312 is an abundant number, since it is smaller than the sum of its proper divisors (551261888).

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

313557312 is a wasteful number, since it uses less digits than its factorization.

313557312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 554 counting only the distinct ones).

The product of its digits is 9450, while the sum is 30.

The square root of 313557312 is about 17707.5495763813. The cubic root of 313557312 is about 679.3688723142.

The spelling of 313557312 in words is "three hundred thirteen million, five hundred fifty-seven thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 64 93 96 124 139 186 192 248 278 372 379 417 496 556 744 758 834 992 1112 1137 1488 1516 1668 1984 2224 2274 2976 3032 3336 4309 4448 4548 5952 6064 6672 8618 8896 9096 11749 12128 12927 13344 17236 18192 23498 24256 25854 26688 34472 35247 36384 46996 51708 52681 68944 70494 72768 93992 103416 105362 137888 140988 158043 187984 206832 210724 275776 281976 316086 375968 413664 421448 563952 632172 751936 827328 842896 1127904 1264344 1633111 1685792 2255808 2528688 3266222 3371584 4899333 5057376 6532444 9798666 10114752 13064888 19597332 26129776 39194664 52259552 78389328 104519104 156778656 313557312