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23282352220 = 2253137552181
BaseRepresentation
bin10101101011101111…
…001000000001011100
32020002120212001000111
4111223233020001130
5340140240232340
614410141335404
71452646504621
oct255357100134
966076761014
1023282352220
11996830a906
124619267564
13227071b39a
1411ac1ca348
15913ed4aea
hex56bbc805c

23282352220 has 24 divisors (see below), whose sum is σ = 50470132608. Its totient is φ = 9012523200.

The previous prime is 23282352179. The next prime is 23282352263. The reversal of 23282352220 is 2225328232.

It is a super-2 number, since 2×232823522202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18775471 + ... + 18776710.

It is an arithmetic number, because the mean of its divisors is an integer number (2102922192).

Almost surely, 223282352220 is an apocalyptic number.

23282352220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23282352220 is an abundant number, since it is smaller than the sum of its proper divisors (27187780388).

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

23282352220 is a wasteful number, since it uses less digits than its factorization.

23282352220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37552221 (or 37552219 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 23282352220 in words is "twenty-three billion, two hundred eighty-two million, three hundred fifty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 37552181 75104362 150208724 187760905 375521810 751043620 1164117611 2328235222 4656470444 5820588055 11641176110 23282352220