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90481768106 = 21523187915809
BaseRepresentation
bin101010001000100100…
…0100011011010101010
322122112211102001201112
41110101020203122222
52440301313034411
6105322230150322
76352136224202
oct1242110433252
9278484361645
1090481768106
1135411665654
12156521b23a2
1386bc892972
144544ca9402
1525487e2b8b
hex15112236aa

90481768106 has 16 divisors (see below), whose sum is σ = 135892641600. Its totient is φ = 45184259328.

The previous prime is 90481768087. The next prime is 90481768127. The reversal of 90481768106 is 60186718409.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5715530 + ... + 5731338.

It is an arithmetic number, because the mean of its divisors is an integer number (8493290100).

Almost surely, 290481768106 is an apocalyptic number.

90481768106 is a deficient number, since it is larger than the sum of its proper divisors (45410873494).

90481768106 is a wasteful number, since it uses less digits than its factorization.

90481768106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19213.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 90481768106 in words is "ninety billion, four hundred eighty-one million, seven hundred sixty-eight thousand, one hundred six".

Divisors: 1 2 1523 1879 3046 3758 15809 31618 2861717 5723434 24077107 29705111 48154214 59410222 45240884053 90481768106