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2315601421 = 71917410537
BaseRepresentation
bin1000101000000101…
…0100011000001101
312222101012201222121
42022001110120031
514220243221141
61021435212541
7111245200360
oct21201243015
95871181877
102315601421
11a89107691
125475a7151
132ab978473
1417d7700d7
15d84541d1
hex8a05460d

2315601421 has 8 divisors (see below), whose sum is σ = 2785686080. Its totient is φ = 1880337888.

The previous prime is 2315601397. The next prime is 2315601427. The reversal of 2315601421 is 1241065132.

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 2315601421 - 29 = 2315600909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315601427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8705136 + ... + 8705401.

It is an arithmetic number, because the mean of its divisors is an integer number (348210760).

Almost surely, 22315601421 is an apocalyptic number.

It is an amenable number.

2315601421 is a deficient number, since it is larger than the sum of its proper divisors (470084659).

2315601421 is a wasteful number, since it uses less digits than its factorization.

2315601421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17410563.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2315601421 is about 48120.6963893915. The cubic root of 2315601421 is about 1322.9840321425.

Adding to 2315601421 its reverse (1241065132), we get a palindrome (3556666553).

The spelling of 2315601421 in words is "two billion, three hundred fifteen million, six hundred one thousand, four hundred twenty-one".

Divisors: 1 7 19 133 17410537 121873759 330800203 2315601421