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231354430 = 2523135443
BaseRepresentation
bin11011100101000…
…11000000111110
3121010100000121121
431302203000332
5433211320210
634542421154
75506323466
oct1562430076
9533300547
10231354430
1110965900a
12655917ba
1338c14918
1422a24ba6
151549e6da
hexdca303e

231354430 has 8 divisors (see below), whose sum is σ = 416437992. Its totient is φ = 92541768.

The previous prime is 231354421. The next prime is 231354433. The reversal of 231354430 is 34453132.

231354430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 231354395 and 231354404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231354433) 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, 11567712 + ... + 11567731.

It is an arithmetic number, because the mean of its divisors is an integer number (52054749).

Almost surely, 2231354430 is an apocalyptic number.

231354430 is a deficient number, since it is larger than the sum of its proper divisors (185083562).

231354430 is a wasteful number, since it uses less digits than its factorization.

231354430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23135450.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 231354430 is about 15210.3395754335. The cubic root of 231354430 is about 613.8928944167.

The spelling of 231354430 in words is "two hundred thirty-one million, three hundred fifty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 23135443 46270886 115677215 231354430