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20014386877 = 191053388783
BaseRepresentation
bin10010101000111100…
…110100111010111101
31220122211121012100001
4102220330310322331
5311442140340002
613110001434301
71305655324102
oct225074647275
956584535301
1020014386877
118540666101
123a6693b991
131b6c674194
14d7c18caa9
157c215da87
hex4a8f34ebd

20014386877 has 4 divisors (see below), whose sum is σ = 21067775680. Its totient is φ = 18960998076.

The previous prime is 20014386871. The next prime is 20014386907. The reversal of 20014386877 is 77868341002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20014386877 - 23 = 20014386869 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 (20014386871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526694373 + ... + 526694410.

It is an arithmetic number, because the mean of its divisors is an integer number (5266943920).

Almost surely, 220014386877 is an apocalyptic number.

It is an amenable number.

20014386877 is a deficient number, since it is larger than the sum of its proper divisors (1053388803).

20014386877 is a wasteful number, since it uses less digits than its factorization.

20014386877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053388802.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 20014386877 in words is "twenty billion, fourteen million, three hundred eighty-six thousand, eight hundred seventy-seven".

Divisors: 1 19 1053388783 20014386877