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20015454053 = 728511002929
BaseRepresentation
bin10010101001000000…
…111001011101100101
31220122220121102020002
4102221000321131211
5311442424012203
613110040351045
71306000360310
oct225100713545
956586542202
1020015454053
118541224971
123a67175485
131b6c958b4a
14d7c389977
157c22bed88
hex4a9039765

20015454053 has 8 divisors (see below), whose sum is σ = 22882850880. Its totient is φ = 17150068800.

The previous prime is 20015454049. The next prime is 20015454097. The reversal of 20015454053 is 35045451002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20015454053 - 22 = 20015454049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20015454253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481508 + ... + 521421.

It is an arithmetic number, because the mean of its divisors is an integer number (2860356360).

Almost surely, 220015454053 is an apocalyptic number.

It is an amenable number.

20015454053 is a deficient number, since it is larger than the sum of its proper divisors (2867396827).

20015454053 is a wasteful number, since it uses less digits than its factorization.

20015454053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005787.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20015454053 in words is "twenty billion, fifteen million, four hundred fifty-four thousand, fifty-three".

Divisors: 1 7 2851 19957 1002929 7020503 2859350579 20015454053