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123253153 = 983912527
BaseRepresentation
bin1110101100010…
…11000110100001
322120220220112121
413112023012201
5223023100103
620121424241
73024430432
oct726130641
9276826477
10123253153
1163633a11
123533b081
131c6c587a
1412525489
15ac496bd
hex758b1a1

123253153 has 4 divisors (see below), whose sum is σ = 123275520. Its totient is φ = 123230788.

The previous prime is 123253073. The next prime is 123253157. The reversal of 123253153 is 351352321.

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 a de Polignac number, because none of the positive numbers 2k-123253153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123253157) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3576 + ... + 16102.

It is an arithmetic number, because the mean of its divisors is an integer number (30818880).

Almost surely, 2123253153 is an apocalyptic number.

It is an amenable number.

123253153 is a deficient number, since it is larger than the sum of its proper divisors (22367).

123253153 is an equidigital number, since it uses as much as digits as its factorization.

123253153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22366.

The product of its digits is 2700, while the sum is 25.

The square root of 123253153 is about 11101.9436586573. The cubic root of 123253153 is about 497.6599359524.

The spelling of 123253153 in words is "one hundred twenty-three million, two hundred fifty-three thousand, one hundred fifty-three".

Divisors: 1 9839 12527 123253153