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132402157 = 523253159
BaseRepresentation
bin1111110010001…
…00101111101101
3100020010201121121
413321010233231
5232343332112
621045500541
73165254056
oct771045755
9306121547
10132402157
1168812778
1238411751
1321579c94
141382772d
15b955407
hex7e44bed

132402157 has 4 divisors (see below), whose sum is σ = 132655840. Its totient is φ = 132148476.

The previous prime is 132402133. The next prime is 132402167. The reversal of 132402157 is 751204231.

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, and also an emirpimes, since its reverse is a distinct semiprime: 751204231 = 809928559.

It is a cyclic number.

It is not a de Polignac number, because 132402157 - 27 = 132402029 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 (132402107) 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 3 ways as a sum of consecutive naturals, for example, 126057 + ... + 127102.

It is an arithmetic number, because the mean of its divisors is an integer number (33163960).

Almost surely, 2132402157 is an apocalyptic number.

It is an amenable number.

132402157 is a deficient number, since it is larger than the sum of its proper divisors (253683).

132402157 is an equidigital number, since it uses as much as digits as its factorization.

132402157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253682.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 132402157 is about 11506.6136200013. The cubic root of 132402157 is about 509.6808935464.

Adding to 132402157 its reverse (751204231), we get a palindrome (883606388).

The spelling of 132402157 in words is "one hundred thirty-two million, four hundred two thousand, one hundred fifty-seven".

Divisors: 1 523 253159 132402157