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2125038399 = 311269239387
BaseRepresentation
bin111111010101001…
…1000001100111111
312111002122010122220
41332222120030333
513323002212044
6550510540423
7103442346141
oct17652301477
95432563586
102125038399
119a058a890
124b3807713
1327b346693
14162326c91
15c6861019
hex7ea9833f

2125038399 has 16 divisors (see below), whose sum is σ = 3102468480. Its totient is φ = 1283108960.

The previous prime is 2125038367. The next prime is 2125038439. The reversal of 2125038399 is 9938305212.

It is a cyclic number.

It is not a de Polignac number, because 2125038399 - 25 = 2125038367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2125038399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125038329) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 110817 + ... + 128570.

It is an arithmetic number, because the mean of its divisors is an integer number (193904280).

Almost surely, 22125038399 is an apocalyptic number.

2125038399 is a deficient number, since it is larger than the sum of its proper divisors (977430081).

2125038399 is a wasteful number, since it uses less digits than its factorization.

2125038399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239670.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 2125038399 is about 46098.1387802154. The cubic root of 2125038399 is about 1285.6485391759.

The spelling of 2125038399 in words is "two billion, one hundred twenty-five million, thirty-eight thousand, three hundred ninety-nine".

Divisors: 1 3 11 33 269 807 2959 8877 239387 718161 2633257 7899771 64395103 193185309 708346133 2125038399