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2313138459 = 3967797359
BaseRepresentation
bin1000100111011111…
…1011000100011011
312222012120121102210
42021313323010123
514214130412314
61021310330203
7111215231622
oct21167730433
95865517383
102313138459
11a87785185
125467b9963
132ab2c53a8
1417d2cc6b9
15d8119559
hex89dfb11b

2313138459 has 8 divisors (see below), whose sum is σ = 3087377920. Its totient is φ = 1540495656.

The previous prime is 2313138437. The next prime is 2313138463. The reversal of 2313138459 is 9548313132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2313138459 - 28 = 2313138203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2313138469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395779 + ... + 401580.

It is an arithmetic number, because the mean of its divisors is an integer number (385922240).

Almost surely, 22313138459 is an apocalyptic number.

2313138459 is a deficient number, since it is larger than the sum of its proper divisors (774239461).

2313138459 is an equidigital number, since it uses as much as digits as its factorization.

2313138459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798329.

The product of its digits is 77760, while the sum is 39.

The square root of 2313138459 is about 48095.0980766232. The cubic root of 2313138459 is about 1322.5148069807.

The spelling of 2313138459 in words is "two billion, three hundred thirteen million, one hundred thirty-eight thousand, four hundred fifty-nine".

Divisors: 1 3 967 2901 797359 2392077 771046153 2313138459