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831335052 = 22369277921
BaseRepresentation
bin110001100011010…
…010101010001100
32010221022012022010
4301203102222030
53200310210202
6214254221220
726413142232
oct6143225214
92127265263
10831335052
113972a3369
121b24b4810
13103304742
147c5a4952
154ceb676c
hex318d2a8c

831335052 has 12 divisors (see below), whose sum is σ = 1939781816. Its totient is φ = 277111680.

The previous prime is 831335017. The next prime is 831335059. The reversal of 831335052 is 250533138.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8313350522 = 1382235937367685408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (831335059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34638949 + ... + 34638972.

Almost surely, 2831335052 is an apocalyptic number.

It is an amenable number.

831335052 is an abundant number, since it is smaller than the sum of its proper divisors (1108446764).

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

831335052 is a wasteful number, since it uses less digits than its factorization.

831335052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69277928 (or 69277926 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 831335052 is about 28832.8814376919. The cubic root of 831335052 is about 940.2832449582.

It can be divided in two parts, 8313 and 35052, that added together give a triangular number (43365 = T294).

The spelling of 831335052 in words is "eight hundred thirty-one million, three hundred thirty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 12 69277921 138555842 207833763 277111684 415667526 831335052