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20332131207 = 325744958733
BaseRepresentation
bin10010111011111000…
…111011001110000111
31221110222111021121120
4102323320323032013
5313120011144312
613201312045023
71316564156313
oct227370731607
957428437546
1020332131207
118693a5a123
123b35233773
131bc044578b
14dac460b43
157deec528c
hex4bbe3b387

20332131207 has 16 divisors (see below), whose sum is σ = 27276069600. Its totient is φ = 13471711232.

The previous prime is 20332131203. The next prime is 20332131221. The reversal of 20332131207 is 70213123302.

It is a cyclic number.

It is not a de Polignac number, because 20332131207 - 22 = 20332131203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332131203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316813 + ... + 375545.

It is an arithmetic number, because the mean of its divisors is an integer number (1704754350).

Almost surely, 220332131207 is an apocalyptic number.

20332131207 is a deficient number, since it is larger than the sum of its proper divisors (6943938393).

20332131207 is a wasteful number, since it uses less digits than its factorization.

20332131207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59442.

The product of its (nonzero) digits is 1512, while the sum is 24.

Adding to 20332131207 its reverse (70213123302), we get a palindrome (90545254509).

The spelling of 20332131207 in words is "twenty billion, three hundred thirty-two million, one hundred thirty-one thousand, two hundred seven".

Divisors: 1 3 257 449 771 1347 58733 115393 176199 346179 15094381 26371117 45283143 79113351 6777377069 20332131207