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90289729383 = 3742667100769
BaseRepresentation
bin101010000010110101…
…1111110111101100111
322122001110001111010020
41110011223332331213
52434403132320013
6105251210130223
76344315015430
oct1240553767547
9278043044106
1090289729383
1135323220067
12155b9a20973
13868bb65299
14452759a487
152536a0c623
hex1505afef67

90289729383 has 16 divisors (see below), whose sum is σ = 137588939520. Its totient is φ = 51592409856.

The previous prime is 90289729381. The next prime is 90289729391. The reversal of 90289729383 is 38392798209.

It is a happy number.

It is not a de Polignac number, because 90289729383 - 21 = 90289729381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90289729381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845623 + ... + 946391.

It is an arithmetic number, because the mean of its divisors is an integer number (8599308720).

Almost surely, 290289729383 is an apocalyptic number.

90289729383 is a deficient number, since it is larger than the sum of its proper divisors (47299210137).

90289729383 is a wasteful number, since it uses less digits than its factorization.

90289729383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143446.

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 90289729383 in words is "ninety billion, two hundred eighty-nine million, seven hundred twenty-nine thousand, three hundred eighty-three".

Divisors: 1 3 7 21 42667 100769 128001 298669 302307 705383 896007 2116149 4299510923 12898532769 30096576461 90289729383