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2131020232 = 231147515237
BaseRepresentation
bin111111100000100…
…1100100111001000
312111111220001012021
41333001030213020
513331020121412
6551243054224
7103544241655
oct17701144710
95444801167
102131020232
119a39a6050
124b5811374
1327c65c323
14163042c2c
15c7143607
hex7f04c9c8

2131020232 has 32 divisors (see below), whose sum is σ = 4451656320. Its totient is φ = 948034240.

The previous prime is 2131020211. The next prime is 2131020271. The reversal of 2131020232 is 2320201312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253483 + ... + 261754.

It is an arithmetic number, because the mean of its divisors is an integer number (139114260).

Almost surely, 22131020232 is an apocalyptic number.

2131020232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2131020232 is an abundant number, since it is smaller than the sum of its proper divisors (2320636088).

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

2131020232 is a wasteful number, since it uses less digits than its factorization.

2131020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515301 (or 515297 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2131020232 is about 46162.9746875134. The cubic root of 2131020232 is about 1286.8537456358.

Adding to 2131020232 its reverse (2320201312), we get a palindrome (4451221544).

The spelling of 2131020232 in words is "two billion, one hundred thirty-one million, twenty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 47 88 94 188 376 517 1034 2068 4136 515237 1030474 2060948 4121896 5667607 11335214 22670428 24216139 45340856 48432278 96864556 193729112 266377529 532755058 1065510116 2131020232