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234153431 = 241971591
BaseRepresentation
bin11011111010011…
…10010111010111
3121022121020010022
431331032113113
5434420402211
635122415355
75542162031
oct1575162727
9538536108
10234153431
1111019aa36
126650155b
1339684935
1423152c51
1515853bdb
hexdf4e5d7

234153431 has 4 divisors (see below), whose sum is σ = 235125264. Its totient is φ = 233181600.

The previous prime is 234153421. The next prime is 234153443. The reversal of 234153431 is 134351432.

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 234153431 - 214 = 234137047 is a prime.

It is a super-2 number, since 2×2341534312 = 109655658498143522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234153431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234153421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485555 + ... + 486036.

It is an arithmetic number, because the mean of its divisors is an integer number (58781316).

Almost surely, 2234153431 is an apocalyptic number.

234153431 is a deficient number, since it is larger than the sum of its proper divisors (971833).

234153431 is an equidigital number, since it uses as much as digits as its factorization.

234153431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971832.

The product of its digits is 4320, while the sum is 26.

The square root of 234153431 is about 15302.0727680926. The cubic root of 234153431 is about 616.3586689198.

The spelling of 234153431 in words is "two hundred thirty-four million, one hundred fifty-three thousand, four hundred thirty-one".

Divisors: 1 241 971591 234153431