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20715544041 = 352120176571
BaseRepresentation
bin10011010010101111…
…100001110111101001
31222110200221200010220
4103102233201313221
5314411134402131
613303330000253
71332231135063
oct232257416751
958420850126
1020715544041
118870425935
124021716089
131c519ca18a
141007348733
158139ade96
hex4d2be1de9

20715544041 has 16 divisors (see below), whose sum is σ = 27691674048. Its totient is φ = 13774924800.

The previous prime is 20715544033. The next prime is 20715544043. The reversal of 20715544041 is 14044551702.

It is not a de Polignac number, because 20715544041 - 23 = 20715544033 is a prime.

It is a super-2 number, since 2×207155440412 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20715543993 and 20715544011.

It is not an unprimeable number, because it can be changed into a prime (20715544043) 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, 3149286 + ... + 3155856.

It is an arithmetic number, because the mean of its divisors is an integer number (1730729628).

Almost surely, 220715544041 is an apocalyptic number.

It is an amenable number.

20715544041 is a deficient number, since it is larger than the sum of its proper divisors (6976130007).

20715544041 is a wasteful number, since it uses less digits than its factorization.

20715544041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112.

The product of its (nonzero) digits is 22400, while the sum is 33.

The spelling of 20715544041 in words is "twenty billion, seven hundred fifteen million, five hundred forty-four thousand, forty-one".

Divisors: 1 3 521 1563 2017 6051 6571 19713 1050857 3152571 3423491 10270473 13253707 39761121 6905181347 20715544041