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90487880834 = 2133480303109
BaseRepresentation
bin101010001000101111…
…1110111110010000010
322122120020220121210212
41110101133313302002
52440304344141314
6105323005154122
76352242203441
oct1242137676202
9278506817725
1090487880834
113541506019a
121565425b942
1386c0c23070
144545a1ad58
1525490ede3e
hex15117f7c82

90487880834 has 8 divisors (see below), whose sum is σ = 146172730620. Its totient is φ = 41763637296.

The previous prime is 90487880809. The next prime is 90487880843. The reversal of 90487880834 is 43808878409.

It can be written as a sum of positive squares in 2 ways, for example, as 88775990209 + 1711890625 = 297953^2 + 41375^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740151529 + ... + 1740151580.

Almost surely, 290487880834 is an apocalyptic number.

90487880834 is a deficient number, since it is larger than the sum of its proper divisors (55684849786).

90487880834 is a wasteful number, since it uses less digits than its factorization.

90487880834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480303124.

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 90487880834 in words is "ninety billion, four hundred eighty-seven million, eight hundred eighty thousand, eight hundred thirty-four".

Divisors: 1 2 13 26 3480303109 6960606218 45243940417 90487880834