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88947497090 = 2561145815569
BaseRepresentation
bin101001011010110101…
…1110001100010000010
322111120220102000120002
41102311223301202002
52424131024401330
6104510101320002
76266126151644
oct1226553614202
9274526360502
1088947497090
11347a45a8081
12152a4406002
138506a616aa
14443b204894
1524a8c78e45
hex14b5af1882

88947497090 has 16 divisors (see below), whose sum is σ = 162730176120. Its totient is φ = 34995736320.

The previous prime is 88947497077. The next prime is 88947497113. The reversal of 88947497090 is 9079474988.

It can be written as a sum of positive squares in 4 ways, for example, as 44474170321 + 44473326769 = 210889^2 + 210887^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72907175 + ... + 72908394.

Almost surely, 288947497090 is an apocalyptic number.

88947497090 is a deficient number, since it is larger than the sum of its proper divisors (73782679030).

88947497090 is a wasteful number, since it uses less digits than its factorization.

88947497090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145815637.

The product of its (nonzero) digits is 36578304, while the sum is 65.

The spelling of 88947497090 in words is "eighty-eight billion, nine hundred forty-seven million, four hundred ninety-seven thousand, ninety".

Divisors: 1 2 5 10 61 122 305 610 145815569 291631138 729077845 1458155690 8894749709 17789499418 44473748545 88947497090