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2131885354 = 21318136967
BaseRepresentation
bin111111100010001…
…1111110100101010
312111120111222220211
41333010133310222
513331230312404
6551313411334
7103554504124
oct17704376452
95446458824
102131885354
119a4437025
124b5b69b4a
1327c8a3031
141631ca214
15c7264b04
hex7f11fd2a

2131885354 has 8 divisors (see below), whose sum is σ = 3222239328. Its totient is φ = 1057805580.

The previous prime is 2131885339. The next prime is 2131885363. The reversal of 2131885354 is 4535881312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4068222 + ... + 4068745.

It is an arithmetic number, because the mean of its divisors is an integer number (402779916).

Almost surely, 22131885354 is an apocalyptic number.

2131885354 is a deficient number, since it is larger than the sum of its proper divisors (1090353974).

2131885354 is a wasteful number, since it uses less digits than its factorization.

2131885354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137100.

The product of its digits is 115200, while the sum is 40.

The square root of 2131885354 is about 46172.3440383960. The cubic root of 2131885354 is about 1287.0278617471.

The spelling of 2131885354 in words is "two billion, one hundred thirty-one million, eight hundred eighty-five thousand, three hundred fifty-four".

Divisors: 1 2 131 262 8136967 16273934 1065942677 2131885354