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234192157 = 1912325903
BaseRepresentation
bin11011111010101…
…11110100011101
3121022200012020121
431331113310131
5434423122112
635123314541
75542412653
oct1575276435
9538605217
10234192157
11110217041
126651ba51
1339699454
1423162dd3
1515860407
hexdf57d1d

234192157 has 4 divisors (see below), whose sum is σ = 246518080. Its totient is φ = 221866236.

The previous prime is 234192137. The next prime is 234192163. The reversal of 234192157 is 751291432.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234192157 - 227 = 99974429 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 (234192137) 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, 6162933 + ... + 6162970.

It is an arithmetic number, because the mean of its divisors is an integer number (61629520).

Almost surely, 2234192157 is an apocalyptic number.

It is an amenable number.

234192157 is a deficient number, since it is larger than the sum of its proper divisors (12325923).

234192157 is a wasteful number, since it uses less digits than its factorization.

234192157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12325922.

The product of its digits is 15120, while the sum is 34.

The square root of 234192157 is about 15303.3380999049. The cubic root of 234192157 is about 616.3926463421.

The spelling of 234192157 in words is "two hundred thirty-four million, one hundred ninety-two thousand, one hundred fifty-seven".

Divisors: 1 19 12325903 234192157