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231343052 = 2257835763
BaseRepresentation
bin11011100101000…
…00001111001100
3121010022110000012
431302200033030
5433210434202
634542252352
75506245353
oct1562401714
9533273005
10231343052
11109650506
12655870b8
1338c0c6a5
1422a2099a
151549b152
hexdca03cc

231343052 has 6 divisors (see below), whose sum is σ = 404850348. Its totient is φ = 115671524.

The previous prime is 231343037. The next prime is 231343067. The reversal of 231343052 is 250343132.

It is an interprime number because it is at equal distance from previous prime (231343037) and next prime (231343067).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28917878 + ... + 28917885.

It is an arithmetic number, because the mean of its divisors is an integer number (67475058).

Almost surely, 2231343052 is an apocalyptic number.

It is an amenable number.

231343052 is a deficient number, since it is larger than the sum of its proper divisors (173507296).

231343052 is a wasteful number, since it uses less digits than its factorization.

231343052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57835767 (or 57835765 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 231343052 is about 15209.9655489419. The cubic root of 231343052 is about 613.8828305105.

Adding to 231343052 its reverse (250343132), we get a palindrome (481686184).

The spelling of 231343052 in words is "two hundred thirty-one million, three hundred forty-three thousand, fifty-two".

Divisors: 1 2 4 57835763 115671526 231343052