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2315301131 = 111353305489
BaseRepresentation
bin1000101000000000…
…1011000100001011
312222100122111001202
42022000023010023
514220204114011
61021424534415
7111242510033
oct21200130413
95870574052
102315301131
11a88a22010
1254748140b
132ab8a1890
1417d6d28c3
15d83e523b
hex8a00b10b

2315301131 has 16 divisors (see below), whose sum is σ = 2771405280. Its totient is φ = 1906245120.

The previous prime is 2315301127. The next prime is 2315301151. The reversal of 2315301131 is 1311035132.

It is not a de Polignac number, because 2315301131 - 22 = 2315301127 is a prime.

It is a super-2 number, since 2×23153011312 = 10721238654419758322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315301151) 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, 145166 + ... + 160323.

It is an arithmetic number, because the mean of its divisors is an integer number (173212830).

Almost surely, 22315301131 is an apocalyptic number.

2315301131 is a deficient number, since it is larger than the sum of its proper divisors (456104149).

2315301131 is a wasteful number, since it uses less digits than its factorization.

2315301131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305566.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 2315301131 is about 48117.5761131003. The cubic root of 2315301131 is about 1322.9268409458.

Adding to 2315301131 its reverse (1311035132), we get a palindrome (3626336263).

The spelling of 2315301131 in words is "two billion, three hundred fifteen million, three hundred one thousand, one hundred thirty-one".

Divisors: 1 11 13 53 143 583 689 7579 305489 3360379 3971357 16190917 43684927 178100087 210481921 2315301131