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231152152331 = 2196891052179
BaseRepresentation
bin1101011101000110111…
…1011110111100001011
3211002122101112222202002
43113101233132330023
512241344422333311
6254105000501215
722462110606362
oct3272157367413
9732571488662
10231152152331
118a038400341
123897047a80b
1318a4a2c4bc9
14b28b5627d9
15602d2d693b
hex35d1bdef0b

231152152331 has 4 divisors (see below), whose sum is σ = 231153424200. Its totient is φ = 231150880464.

The previous prime is 231152152321. The next prime is 231152152373. The reversal of 231152152331 is 133251251132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231152152331 - 214 = 231152135947 is a prime.

It is a super-2 number, since 2×2311521523312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231152152294 and 231152152303.

It is not an unprimeable number, because it can be changed into a prime (231152152321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306401 + ... + 745778.

It is an arithmetic number, because the mean of its divisors is an integer number (57788356050).

Almost surely, 2231152152331 is an apocalyptic number.

231152152331 is a deficient number, since it is larger than the sum of its proper divisors (1271869).

231152152331 is a wasteful number, since it uses less digits than its factorization.

231152152331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271868.

The product of its digits is 5400, while the sum is 29.

The spelling of 231152152331 in words is "two hundred thirty-one billion, one hundred fifty-two million, one hundred fifty-two thousand, three hundred thirty-one".

Divisors: 1 219689 1052179 231152152331