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90486161950 = 2523158378169
BaseRepresentation
bin101010001000101100…
…1010100001000011110
322122120010200021221111
41110101121110020132
52440303424140300
6105322504252234
76352221454222
oct1242131241036
9278503607844
1090486161950
1135414096828
121565377107a
1386c0770882
1445456d0782
152548dae9ba
hex151165421e

90486161950 has 24 divisors (see below), whose sum is σ = 173733433920. Its totient is φ = 35026900800.

The previous prime is 90486161917. The next prime is 90486161951. The reversal of 90486161950 is 5916168409.

It is a junction number, because it is equal to n+sod(n) for n = 90486161894 and 90486161903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90486161951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29187535 + ... + 29190634.

It is an arithmetic number, because the mean of its divisors is an integer number (7238893080).

Almost surely, 290486161950 is an apocalyptic number.

90486161950 is a deficient number, since it is larger than the sum of its proper divisors (83247271970).

90486161950 is a wasteful number, since it uses less digits than its factorization.

90486161950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58378212 (or 58378207 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 90486161950 in words is "ninety billion, four hundred eighty-six million, one hundred sixty-one thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 31 50 62 155 310 775 1550 58378169 116756338 291890845 583781690 1459454225 1809723239 2918908450 3619446478 9048616195 18097232390 45243080975 90486161950