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2331312103 = 19151812587
BaseRepresentation
bin1000101011110100…
…1111111111100111
320000110202220222201
42022331033333213
514233303441403
61023200035331
7111525553201
oct21275177747
96013686881
102331312103
11a96a6831a
12550902b47
132b1cb9423
1418189d771
15d9a0921d
hex8af4ffe7

2331312103 has 8 divisors (see below), whose sum is σ = 2470267520. Its totient is φ = 2193982200.

The previous prime is 2331312097. The next prime is 2331312133. The reversal of 2331312103 is 3012131332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2331312103 is a prime.

It is a super-2 number, since 2×23313121032 = 10870032243188565218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331312133) 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, 403425 + ... + 409162.

It is an arithmetic number, because the mean of its divisors is an integer number (308783440).

Almost surely, 22331312103 is an apocalyptic number.

2331312103 is a deficient number, since it is larger than the sum of its proper divisors (138955417).

2331312103 is a wasteful number, since it uses less digits than its factorization.

2331312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812757.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2331312103 is about 48283.6628995771. The cubic root of 2331312103 is about 1325.9693114645.

Adding to 2331312103 its reverse (3012131332), we get a palindrome (5343443435).

The spelling of 2331312103 in words is "two billion, three hundred thirty-one million, three hundred twelve thousand, one hundred three".

Divisors: 1 19 151 2869 812587 15439153 122700637 2331312103