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313678020 = 223510947963
BaseRepresentation
bin10010101100100…
…101100011000100
3210212020111100110
4102230211203010
51120300144040
651043113020
710526135115
oct2254454304
9725214313
10313678020
11151076a37
1289072770
134cca97c6
142d93420c
151c811980
hex12b258c4

313678020 has 48 divisors (see below), whose sum is σ = 886374720. Its totient is φ = 82878336.

The previous prime is 313678019. The next prime is 313678061. The reversal of 313678020 is 20876313.

It is a super-2 number, since 2×3136780202 = 196787800462240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17442 + ... + 30521.

It is an arithmetic number, because the mean of its divisors is an integer number (18466140).

Almost surely, 2313678020 is an apocalyptic number.

313678020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313678020 is an abundant number, since it is smaller than the sum of its proper divisors (572696700).

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

313678020 is a wasteful number, since it uses less digits than its factorization.

313678020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48084 (or 48082 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 313678020 is about 17710.9576251540. The cubic root of 313678020 is about 679.4560384493.

The spelling of 313678020 in words is "three hundred thirteen million, six hundred seventy-eight thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 1090 1308 1635 2180 3270 6540 47963 95926 143889 191852 239815 287778 479630 575556 719445 959260 1438890 2877780 5227967 10455934 15683901 20911868 26139835 31367802 52279670 62735604 78419505 104559340 156839010 313678020