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90823424824 = 23113672812219
BaseRepresentation
bin101010010010101111…
…1110111101100111000
322200102122022000122001
41110211133313230320
52442001244043244
6105420153110344
76363455242006
oct1244537675470
9280378260561
1090823424824
1135577501380
12157286b83b4
1387455b73c2
144578403a76
1525687ce5d4
hex15257f7b38

90823424824 has 32 divisors (see below), whose sum is σ = 186281452800. Its totient is φ = 41170871520.

The previous prime is 90823424821. The next prime is 90823424831. The reversal of 90823424824 is 42842432809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90823424821) 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, 1373814 + ... + 1438405.

It is an arithmetic number, because the mean of its divisors is an integer number (5821295400).

Almost surely, 290823424824 is an apocalyptic number.

It is an amenable number.

90823424824 is an abundant number, since it is smaller than the sum of its proper divisors (95458027976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90823424824 is a wasteful number, since it uses less digits than its factorization.

90823424824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812603 (or 2812599 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 90823424824 in words is "ninety billion, eight hundred twenty-three million, four hundred twenty-four thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 11 22 44 88 367 734 1468 2936 4037 8074 16148 32296 2812219 5624438 11248876 22497752 30934409 61868818 123737636 247475272 1032084373 2064168746 4128337492 8256674984 11352928103 22705856206 45411712412 90823424824