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855513038 = 21937837331
BaseRepresentation
bin110010111111100…
…001011111001110
32012121210120021002
4302333201133032
53223002404123
6220520340302
730125512052
oct6277413716
92177716232
10855513038
113a9a07676
121ba614692
1310831b743
1481899c62
1550190528
hex32fe17ce

855513038 has 32 divisors (see below), whose sum is σ = 1404224640. Its totient is φ = 389486880.

The previous prime is 855513013. The next prime is 855513059. The reversal of 855513038 is 830315558.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 855512992 and 855513010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113033 + ... + 120363.

It is an arithmetic number, because the mean of its divisors is an integer number (43882020).

Almost surely, 2855513038 is an apocalyptic number.

855513038 is a deficient number, since it is larger than the sum of its proper divisors (548711602).

855513038 is a wasteful number, since it uses less digits than its factorization.

855513038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 855513038 is about 29249.1544835060. The cubic root of 855513038 is about 949.3117963053.

The spelling of 855513038 in words is "eight hundred fifty-five million, five hundred thirteen thousand, thirty-eight".

Divisors: 1 2 19 37 38 74 83 166 703 1406 1577 3071 3154 6142 7331 14662 58349 116698 139289 271247 278578 542494 608473 1216946 5153693 10307386 11560987 22513501 23121974 45027002 427756519 855513038