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20057917335 = 352847746957
BaseRepresentation
bin10010101011100010…
…111000011110010111
31220202212111202220020
4102223202320132113
5312034311323320
613114154440223
71310024325051
oct225342703627
956685452806
1020057917335
118563198195
123a79433073
131b786a5951
14d83c808d1
157c5dab940
hex4ab8b8797

20057917335 has 16 divisors (see below), whose sum is σ = 32094478176. Its totient is φ = 10696952448.

The previous prime is 20057917333. The next prime is 20057917391. The reversal of 20057917335 is 53371975002.

It is not a de Polignac number, because 20057917335 - 21 = 20057917333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20057917333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403677 + ... + 450633.

It is an arithmetic number, because the mean of its divisors is an integer number (2005904886).

Almost surely, 220057917335 is an apocalyptic number.

20057917335 is a deficient number, since it is larger than the sum of its proper divisors (12036560841).

20057917335 is a wasteful number, since it uses less digits than its factorization.

20057917335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75442.

The product of its (nonzero) digits is 198450, while the sum is 42.

The spelling of 20057917335 in words is "twenty billion, fifty-seven million, nine hundred seventeen thousand, three hundred thirty-five".

Divisors: 1 3 5 15 28477 46957 85431 140871 142385 234785 427155 704355 1337194489 4011583467 6685972445 20057917335