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2122130238 = 234364712713
BaseRepresentation
bin111111001111101…
…0010001100111110
312110220011101102020
41332133102030332
513321231131423
6550324341010
7103405544424
oct17637221476
95426141366
102122130238
11999983948
124b2844766
1327a868a87
14161bab114
15c64894e3
hex7e7d233e

2122130238 has 32 divisors (see below), whose sum is σ = 4350018816. Its totient is φ = 689803968.

The previous prime is 2122130237. The next prime is 2122130239. The reversal of 2122130238 is 8320312212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2122130237) and next prime (2122130239).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122130233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160570 + ... + 173282.

It is an arithmetic number, because the mean of its divisors is an integer number (135938088).

Almost surely, 22122130238 is an apocalyptic number.

2122130238 is an abundant number, since it is smaller than the sum of its proper divisors (2227888578).

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

2122130238 is a wasteful number, since it uses less digits than its factorization.

2122130238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13408.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2122130238 is about 46066.5848310899. The cubic root of 2122130238 is about 1285.0617921604.

The spelling of 2122130238 in words is "two billion, one hundred twenty-two million, one hundred thirty thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 43 86 129 258 647 1294 1941 3882 12713 25426 27821 38139 55642 76278 83463 166926 546659 1093318 1639977 3279954 8225311 16450622 24675933 49351866 353688373 707376746 1061065119 2122130238