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313033020 = 223543312049
BaseRepresentation
bin10010101010001…
…000000100111100
3210211000201120120
4102222020010330
51120114024040
651021214540
710520510466
oct2252100474
9724021516
10313033020
11150776383
1288a01450
134cb12051
142d807136
151c7357d0
hex12a8813c

313033020 has 48 divisors (see below), whose sum is σ = 878589600. Its totient is φ = 83275776.

The previous prime is 313033003. The next prime is 313033027. The reversal of 313033020 is 20330313.

It is a super-2 number, since 2×3130330202 = 195979343220640800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313033027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19956 + ... + 32004.

It is an arithmetic number, because the mean of its divisors is an integer number (18303950).

Almost surely, 2313033020 is an apocalyptic number.

313033020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313033020 is an abundant number, since it is smaller than the sum of its proper divisors (565556580).

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

313033020 is a wasteful number, since it uses less digits than its factorization.

313033020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12494 (or 12492 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 313033020 is about 17692.7391887181. The cubic root of 313033020 is about 678.9900086953.

Adding to 313033020 its reverse (20330313), we get a palindrome (333363333).

The spelling of 313033020 in words is "three hundred thirteen million, thirty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 433 866 1299 1732 2165 2598 4330 5196 6495 8660 12049 12990 24098 25980 36147 48196 60245 72294 120490 144588 180735 240980 361470 722940 5217217 10434434 15651651 20868868 26086085 31303302 52172170 62606604 78258255 104344340 156516510 313033020