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231414442 = 2731533213
BaseRepresentation
bin11011100101100…
…01101010101010
3121010110001221021
431302301222222
5433220230232
634544003054
75506663450
oct1562615252
9533401837
10231414442
1110969a106
126560048a
1338c3602c
1422a3c9d0
15154b2397
hexdcb1aaa

231414442 has 16 divisors (see below), whose sum is σ = 409508352. Its totient is φ = 95978160.

The previous prime is 231414439. The next prime is 231414467. The reversal of 231414442 is 244414132.

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, 266173 + ... + 267040.

It is an arithmetic number, because the mean of its divisors is an integer number (25594272).

Almost surely, 2231414442 is an apocalyptic number.

231414442 is a deficient number, since it is larger than the sum of its proper divisors (178093910).

231414442 is a wasteful number, since it uses less digits than its factorization.

231414442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533253.

The product of its digits is 3072, while the sum is 25.

The square root of 231414442 is about 15212.3121845432. The cubic root of 231414442 is about 613.9459699156.

Adding to 231414442 its reverse (244414132), we get a palindrome (475828574).

The spelling of 231414442 in words is "two hundred thirty-one million, four hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 7 14 31 62 217 434 533213 1066426 3732491 7464982 16529603 33059206 115707221 231414442