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20040880417 = 471487286753
BaseRepresentation
bin10010101010100001…
…111001000100100001
31220201200110012122021
4102222201321010201
5312020431133132
613112345341441
71306426446535
oct225241710441
956650405567
1020040880417
118554611098
123a73797881
131b74cbc12c
14d818c7bc5
157c4643997
hex4aa879121

20040880417 has 8 divisors (see below), whose sum is σ = 20481117696. Its totient is φ = 19601219712.

The previous prime is 20040880393. The next prime is 20040880451. The reversal of 20040880417 is 71408804002.

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 20040880417 - 227 = 19906662689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20040883417) 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, 73488 + ... + 213265.

It is an arithmetic number, because the mean of its divisors is an integer number (2560139712).

Almost surely, 220040880417 is an apocalyptic number.

It is an amenable number.

20040880417 is a deficient number, since it is larger than the sum of its proper divisors (440237279).

20040880417 is a wasteful number, since it uses less digits than its factorization.

20040880417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288287.

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 20040880417 in words is "twenty billion, forty million, eight hundred eighty thousand, four hundred seventeen".

Divisors: 1 47 1487 69889 286753 13477391 426401711 20040880417