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90629319647 = 1499552710939
BaseRepresentation
bin101010001100111101…
…1011010101111011111
322122221010001110101102
41110121323122233133
52441102101212042
6105345020503315
76355610335466
oct1243173325737
9278833043342
1090629319647
1135487985279
12156936aab3b
138714315279
14455a7179dd
15255673bb32
hex1519edabdf

90629319647 has 8 divisors (see below), whose sum is σ = 90714480000. Its totient is φ = 90544195224.

The previous prime is 90629319607. The next prime is 90629319713. The reversal of 90629319647 is 74691392609.

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 90629319647 - 210 = 90629318623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90629319592 and 90629319601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90629319607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8279504 + ... + 8290442.

It is an arithmetic number, because the mean of its divisors is an integer number (11339310000).

Almost surely, 290629319647 is an apocalyptic number.

90629319647 is a deficient number, since it is larger than the sum of its proper divisors (85160353).

90629319647 is a wasteful number, since it uses less digits than its factorization.

90629319647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17965.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The spelling of 90629319647 in words is "ninety billion, six hundred twenty-nine million, three hundred nineteen thousand, six hundred forty-seven".

Divisors: 1 1499 5527 10939 8284973 16397561 60459853 90629319647