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231275101 = 8323311959
BaseRepresentation
bin11011100100011…
…11101001011101
3121010011222210111
431302033221131
5433201300401
634541010021
75505543301
oct1562175135
9533158714
10231275101
11109604452
1265553911
1338bb7795
1422a03d01
1515485e51
hexdc8fa5d

231275101 has 8 divisors (see below), whose sum is σ = 235085760. Its totient is φ = 227488992.

The previous prime is 231275081. The next prime is 231275117. The reversal of 231275101 is 101572132.

It is a happy number.

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 231275101 - 25 = 231275069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231275141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13360 + ... + 25318.

It is an arithmetic number, because the mean of its divisors is an integer number (29385720).

Almost surely, 2231275101 is an apocalyptic number.

It is an amenable number.

231275101 is a deficient number, since it is larger than the sum of its proper divisors (3810659).

231275101 is a wasteful number, since it uses less digits than its factorization.

231275101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12275.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 231275101 is about 15207.7316191469. The cubic root of 231275101 is about 613.8227205905.

The spelling of 231275101 in words is "two hundred thirty-one million, two hundred seventy-five thousand, one hundred one".

Divisors: 1 83 233 11959 19339 992597 2786447 231275101