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231472299 = 3233354671
BaseRepresentation
bin11011100101111…
…11110010101011
3121010120000022010
431302333302223
5433224103144
634545131003
75510324232
oct1562776253
9533500263
10231472299
11109729623
1265629a63
1338c56476
1422a55b19
15154c45b9
hexdcbfcab

231472299 has 8 divisors (see below), whose sum is σ = 322048512. Its totient is φ = 147605480.

The previous prime is 231472277. The next prime is 231472301. The reversal of 231472299 is 992274132.

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

It is a cyclic number.

It is not a de Polignac number, because 231472299 - 29 = 231471787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231472099) 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 7 ways as a sum of consecutive naturals, for example, 1677267 + ... + 1677404.

It is an arithmetic number, because the mean of its divisors is an integer number (40256064).

Almost surely, 2231472299 is an apocalyptic number.

231472299 is a deficient number, since it is larger than the sum of its proper divisors (90576213).

231472299 is a wasteful number, since it uses less digits than its factorization.

231472299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354697.

The product of its digits is 54432, while the sum is 39.

The square root of 231472299 is about 15214.2137161274. The cubic root of 231472299 is about 613.9971308138.

The spelling of 231472299 in words is "two hundred thirty-one million, four hundred seventy-two thousand, two hundred ninety-nine".

Divisors: 1 3 23 69 3354671 10064013 77157433 231472299