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231541054 = 21759911369
BaseRepresentation
bin11011100110100…
…00100100111110
3121010200111121121
431303100210332
5433233303204
634550421154
75511031543
oct1563204476
9533614547
10231541054
11109776248
12656617ba
1338c7b854
1422a72bca
15154d9b54
hexdcd093e

231541054 has 16 divisors (see below), whose sum is σ = 368388000. Its totient is φ = 108769024.

The previous prime is 231541043. The next prime is 231541067. The reversal of 231541054 is 450145132.

It is a happy number.

It is a super-2 number, since 2×2315410542 = 107222519374861832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14682 + ... + 26050.

It is an arithmetic number, because the mean of its divisors is an integer number (23024250).

Almost surely, 2231541054 is an apocalyptic number.

231541054 is a deficient number, since it is larger than the sum of its proper divisors (136846946).

231541054 is a wasteful number, since it uses less digits than its factorization.

231541054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11987.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 231541054 is about 15216.4731130443. The cubic root of 231541054 is about 614.0579173439.

Adding to 231541054 its reverse (450145132), we get a palindrome (681686186).

The spelling of 231541054 in words is "two hundred thirty-one million, five hundred forty-one thousand, fifty-four".

Divisors: 1 2 17 34 599 1198 10183 11369 20366 22738 193273 386546 6810031 13620062 115770527 231541054