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30802757080 = 2353372285071
BaseRepresentation
bin11100101011111111…
…001100010111011000
32221111200211012001211
4130223333030113120
51001041001211310
622052305552504
72140215054334
oct345377142730
987450735054
1030802757080
1112077398337
125b77945734
132b9b7a1ba4
1416c2cd07c4
15c04347c8a
hex72bfcc5d8

30802757080 has 32 divisors (see below), whose sum is σ = 69511890240. Its totient is φ = 12284536320.

The previous prime is 30802757077. The next prime is 30802757129. The reversal of 30802757080 is 8075720803.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129056 + ... + 1156015.

It is an arithmetic number, because the mean of its divisors is an integer number (2172246570).

Almost surely, 230802757080 is an apocalyptic number.

It is an amenable number.

30802757080 is an abundant number, since it is smaller than the sum of its proper divisors (38709133160).

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

30802757080 is a wasteful number, since it uses less digits than its factorization.

30802757080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285419 (or 2285415 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 30802757080 in words is "thirty billion, eight hundred two million, seven hundred fifty-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 337 674 1348 1685 2696 3370 6740 13480 2285071 4570142 9140284 11425355 18280568 22850710 45701420 91402840 770068927 1540137854 3080275708 3850344635 6160551416 7700689270 15401378540 30802757080