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20332131230 = 25191011059517
BaseRepresentation
bin10010111011111000…
…111011001110011110
31221110222111021122102
4102323320323032132
5313120011144410
613201312045102
71316564156345
oct227370731636
957428437572
1020332131230
118693a5a144
123b35233792
131bc04457a8
14dac460b5c
157deec52a5
hex4bbe3b39e

20332131230 has 32 divisors (see below), whose sum is σ = 38905500960. Its totient is φ = 7628515200.

The previous prime is 20332131227. The next prime is 20332131241. The reversal of 20332131230 is 3213123302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510569 + ... + 548948.

It is an arithmetic number, because the mean of its divisors is an integer number (1215796905).

Almost surely, 220332131230 is an apocalyptic number.

20332131230 is a deficient number, since it is larger than the sum of its proper divisors (18573369730).

20332131230 is a wasteful number, since it uses less digits than its factorization.

20332131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059644.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20332131230 its reverse (3213123302), we get a palindrome (23545254532).

The spelling of 20332131230 in words is "twenty billion, three hundred thirty-two million, one hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 19 38 95 101 190 202 505 1010 1919 3838 9595 19190 1059517 2119034 5297585 10595170 20130823 40261646 100654115 107011217 201308230 214022434 535056085 1070112170 2033213123 4066426246 10166065615 20332131230