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90131398741 = 2322371751791
BaseRepresentation
bin101001111110001000…
…0000000000001010101
322121122102010110022101
41103330100000001111
52434042114224431
6105223352402101
76340353151156
oct1237420000125
9277572113271
1090131398741
113525190899a
12155749a6331
13866510a607
14451054392d
152527b84961
hex14fc400055

90131398741 has 8 divisors (see below), whose sum is σ = 94092251904. Its totient is φ = 86174053680.

The previous prime is 90131398727. The next prime is 90131398769. The reversal of 90131398741 is 14789313109.

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 90131398741 - 213 = 90131390549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90131398691 and 90131398700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90131398141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824445 + ... + 927346.

It is an arithmetic number, because the mean of its divisors is an integer number (11761531488).

Almost surely, 290131398741 is an apocalyptic number.

It is an amenable number.

90131398741 is a deficient number, since it is larger than the sum of its proper divisors (3960853163).

90131398741 is a wasteful number, since it uses less digits than its factorization.

90131398741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754051.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 90131398741 in words is "ninety billion, one hundred thirty-one million, three hundred ninety-eight thousand, seven hundred forty-one".

Divisors: 1 23 2237 51451 1751791 40291193 3918756467 90131398741