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20552143614 = 23173109718049
BaseRepresentation
bin10011001001000000…
…001101001011111110
31222001022111001220020
4103021000031023332
5314042322043424
613235211433010
71325205224022
oct231100151376
958038431806
1020552143614
118797170762
123b96a55766
131c26bb8a32
14dcd772382
15804484079
hex4c900d2fe

20552143614 has 32 divisors (see below), whose sum is σ = 41381863200. Its totient is φ = 6804529152.

The previous prime is 20552143613. The next prime is 20552143669. The reversal of 20552143614 is 41634125502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552143613) 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, 1129662 + ... + 1147710.

It is an arithmetic number, because the mean of its divisors is an integer number (1293183225).

Almost surely, 220552143614 is an apocalyptic number.

20552143614 is an abundant number, since it is smaller than the sum of its proper divisors (20829719586).

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

20552143614 is a wasteful number, since it uses less digits than its factorization.

20552143614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19324.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 20552143614 in words is "twenty billion, five hundred fifty-two million, one hundred forty-three thousand, six hundred fourteen".

Divisors: 1 2 3 6 173 346 519 1038 1097 2194 3291 6582 18049 36098 54147 108294 189781 379562 569343 1138686 3122477 6244954 9367431 18734862 19799753 39599506 59399259 118798518 3425357269 6850714538 10276071807 20552143614