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313529868 = 223219458377
BaseRepresentation
bin10010101100000…
…001011000001100
3210211221222010100
4102230001120030
51120230423433
651040011100
710524650151
oct2254013014
9724858110
10313529868
11150a856a3
1289000a90
134cc57242
142d8d6228
151c7d2b13
hex12b0160c

313529868 has 36 divisors (see below), whose sum is σ = 834247960. Its totient is φ = 99009216.

The previous prime is 313529863. The next prime is 313529891. The reversal of 313529868 is 868925313.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (313529863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228505 + ... + 229872.

Almost surely, 2313529868 is an apocalyptic number.

313529868 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

313529868 is an abundant number, since it is smaller than the sum of its proper divisors (520718092).

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

313529868 is a wasteful number, since it uses less digits than its factorization.

313529868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458406 (or 458401 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 313529868 is about 17706.7746357150. The cubic root of 313529868 is about 679.3490512239.

The spelling of 313529868 in words is "three hundred thirteen million, five hundred twenty-nine thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 458377 916754 1375131 1833508 2750262 4125393 5500524 8250786 8709163 16501572 17418326 26127489 34836652 52254978 78382467 104509956 156764934 313529868