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890430245087 = 17333111572401
BaseRepresentation
bin11001111010100011100…
…01110100100011011111
310011010100121121011102012
430331101301310203133
5104042100120320322
61521020310221435
7121221456126305
oct14752161644337
93133317534365
10890430245087
113136a1729339
121246a335487b
1365c75c6c936
143115045c275
1518267308ae2
hexcf51c748df

890430245087 has 8 divisors (see below), whose sum is σ = 942837397632. Its totient is φ = 838026304000.

The previous prime is 890430245077. The next prime is 890430245093. The reversal of 890430245087 is 780542034098.

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 890430245087 - 24 = 890430245071 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 (890430245077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219914 + ... + 1352487.

It is an arithmetic number, because the mean of its divisors is an integer number (117854674704).

Almost surely, 2890430245087 is an apocalyptic number.

890430245087 is a deficient number, since it is larger than the sum of its proper divisors (52407152545).

890430245087 is a wasteful number, since it uses less digits than its factorization.

890430245087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605729.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 890430245087 in words is "eight hundred ninety billion, four hundred thirty million, two hundred forty-five thousand, eighty-seven".

Divisors: 1 17 33311 566287 1572401 26730817 52378249711 890430245087