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90451510967 = 691977133981
BaseRepresentation
bin101010000111101010…
…1001000011010110111
322122110201110211201202
41110033111020122313
52440221041322332
6105315225443115
76351321105026
oct1241725103267
9278421424652
1090451510967
11353a6579a54
121564404049b
1386b652a92c
144540c708bd
152545d17a62
hex150f5486b7

90451510967 has 8 divisors (see below), whose sum is σ = 90675802032. Its totient is φ = 90227491200.

The previous prime is 90451510957. The next prime is 90451510997. The reversal of 90451510967 is 76901515409.

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 90451510967 - 214 = 90451494583 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 (90451510907) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 608117 + ... + 742097.

It is an arithmetic number, because the mean of its divisors is an integer number (11334475254).

Almost surely, 290451510967 is an apocalyptic number.

90451510967 is a deficient number, since it is larger than the sum of its proper divisors (224291065).

90451510967 is a wasteful number, since it uses less digits than its factorization.

90451510967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135649.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 90451510967 in words is "ninety billion, four hundred fifty-one million, five hundred ten thousand, nine hundred sixty-seven".

Divisors: 1 691 977 133981 675107 92580871 130899437 90451510967