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232140133 = 257903269
BaseRepresentation
bin11011101011000…
…10110101100101
3121011210221101201
431311202311211
5433411441013
635011322501
75516105251
oct1565426545
9534727351
10232140133
1110a045355
12658b0431
133912b434
1422b8b261
15155a73dd
hexdd62d65

232140133 has 4 divisors (see below), whose sum is σ = 233043660. Its totient is φ = 231236608.

The previous prime is 232140131. The next prime is 232140143. The reversal of 232140133 is 331041232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164275489 + 67864644 = 12817^2 + 8238^2 .

It is a cyclic number.

It is not a de Polignac number, because 232140133 - 21 = 232140131 is a prime.

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 232140133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232140131) 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, 451378 + ... + 451891.

It is an arithmetic number, because the mean of its divisors is an integer number (58260915).

Almost surely, 2232140133 is an apocalyptic number.

It is an amenable number.

232140133 is a deficient number, since it is larger than the sum of its proper divisors (903527).

232140133 is an equidigital number, since it uses as much as digits as its factorization.

232140133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903526.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 232140133 is about 15236.1456083880. The cubic root of 232140133 is about 614.5870566082.

Adding to 232140133 its reverse (331041232), we get a palindrome (563181365).

The spelling of 232140133 in words is "two hundred thirty-two million, one hundred forty thousand, one hundred thirty-three".

Divisors: 1 257 903269 232140133