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830522881 = 5914076659
BaseRepresentation
bin110001100000001…
…100011000000001
32010212202221012201
4301200030120001
53200103213011
6214224553201
726403220336
oct6140143001
92125687181
10830522881
11396899151
121b2182801
131030abb76
147c43298d
154cda5cc1
hex3180c601

830522881 has 4 divisors (see below), whose sum is σ = 844599600. Its totient is φ = 816446164.

The previous prime is 830522863. The next prime is 830522911. The reversal of 830522881 is 188225038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 830522881 - 27 = 830522753 is a prime.

It is a super-2 number, since 2×8305228812 = 1379536511729080322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 830522881.

It is not an unprimeable number, because it can be changed into a prime (830525881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7038271 + ... + 7038388.

It is an arithmetic number, because the mean of its divisors is an integer number (211149900).

Almost surely, 2830522881 is an apocalyptic number.

It is an amenable number.

830522881 is a deficient number, since it is larger than the sum of its proper divisors (14076719).

830522881 is a wasteful number, since it uses less digits than its factorization.

830522881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076718.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 830522881 is about 28818.7938852409. The cubic root of 830522881 is about 939.9769426214.

The spelling of 830522881 in words is "eight hundred thirty million, five hundred twenty-two thousand, eight hundred eighty-one".

Divisors: 1 59 14076659 830522881