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2131092555 = 351794791657
BaseRepresentation
bin111111100000101…
…1110010001001011
312111112000201101220
41333001132101023
513331024430210
6551244413123
7103544662554
oct17701362113
95445021356
102131092555
119a3a45419
124b58471a3
1327c686217
1416306132b
15c7159c70
hex7f05e44b

2131092555 has 32 divisors (see below), whose sum is σ = 3438028800. Its totient is φ = 1127192832.

The previous prime is 2131092541. The next prime is 2131092641. The reversal of 2131092555 is 5552901312.

It is not a de Polignac number, because 2131092555 - 29 = 2131092043 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 1285287 + ... + 1286943.

It is an arithmetic number, because the mean of its divisors is an integer number (107438400).

Almost surely, 22131092555 is an apocalyptic number.

2131092555 is a deficient number, since it is larger than the sum of its proper divisors (1306936245).

2131092555 is a wasteful number, since it uses less digits than its factorization.

2131092555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 2131092555 is about 46163.7580251002. The cubic root of 2131092555 is about 1286.8683033062.

Adding to 2131092555 its reverse (5552901312), we get a palindrome (7683993867).

The spelling of 2131092555 in words is "two billion, one hundred thirty-one million, ninety-two thousand, five hundred fifty-five".

Divisors: 1 3 5 15 179 479 537 895 1437 1657 2395 2685 4971 7185 8285 24855 85741 257223 296603 428705 793703 889809 1286115 1483015 2381109 3968515 4449045 11905545 142072837 426218511 710364185 2131092555