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2131032430 = 25461462263
BaseRepresentation
bin111111100000100…
…1111100101101110
312111111220122221001
41333001033211232
513331021014210
6551243230514
7103544322352
oct17701174556
95444818831
102131032430
119a3a0422a
124b581843a
1327c664a47
14163047462
15c714703a
hex7f04f96e

2131032430 has 16 divisors (see below), whose sum is σ = 3844187424. Its totient is φ = 850562080.

The previous prime is 2131032401. The next prime is 2131032461. The reversal of 2131032430 is 342301312.

It is a junction number, because it is equal to n+sod(n) for n = 2131032398 and 2131032407.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 226522 + ... + 235741.

It is an arithmetic number, because the mean of its divisors is an integer number (240261714).

Almost surely, 22131032430 is an apocalyptic number.

2131032430 is a deficient number, since it is larger than the sum of its proper divisors (1713154994).

2131032430 is a wasteful number, since it uses less digits than its factorization.

2131032430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462731.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2131032430 is about 46163.1068061932. The cubic root of 2131032430 is about 1286.8562009561.

Adding to 2131032430 its reverse (342301312), we get a palindrome (2473333742).

The spelling of 2131032430 in words is "two billion, one hundred thirty-one million, thirty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 461 922 2305 4610 462263 924526 2311315 4622630 213103243 426206486 1065516215 2131032430