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231442102 = 2211548441
BaseRepresentation
bin11011100101110…
…00011010110110
3121010111110212201
431302320122312
5433222121402
634544335114
75510140213
oct1562703266
9533443781
10231442102
11109708971
126561449a
1338c457b8
1422a48b0a
15154ba687
hexdcb86b6

231442102 has 8 divisors (see below), whose sum is σ = 348809112. Its totient is φ = 115172400.

The previous prime is 231442093. The next prime is 231442109. The reversal of 231442102 is 201244132.

Adding to 231442102 its reverse (201244132), we get a palindrome (432686234).

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

It is a self number, because there is not a number n which added to its sum of digits gives 231442102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231442109) 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, 273799 + ... + 274642.

It is an arithmetic number, because the mean of its divisors is an integer number (43601139).

Almost surely, 2231442102 is an apocalyptic number.

231442102 is a deficient number, since it is larger than the sum of its proper divisors (117367010).

231442102 is a wasteful number, since it uses less digits than its factorization.

231442102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548654.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 231442102 is about 15213.2212893917. The cubic root of 231442102 is about 613.9704297388.

The spelling of 231442102 in words is "two hundred thirty-one million, four hundred forty-two thousand, one hundred two".

Divisors: 1 2 211 422 548441 1096882 115721051 231442102