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152452123 = 712147213
BaseRepresentation
bin10010001011000…
…11110000011011
3101121212100222221
421011203300123
5303011431443
623043324511
73530551555
oct1105436033
9347770887
10152452123
117906759a
1243080737
132577a075
14163664d5
15d5b5eed
hex9163c1b

152452123 has 4 divisors (see below), whose sum is σ = 154599408. Its totient is φ = 150304840.

The previous prime is 152452121. The next prime is 152452147. The reversal of 152452123 is 321254251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321254251 = 1847173933.

It is a cyclic number.

It is not a de Polignac number, because 152452123 - 21 = 152452121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152452121) 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, 1073536 + ... + 1073677.

It is an arithmetic number, because the mean of its divisors is an integer number (38649852).

Almost surely, 2152452123 is an apocalyptic number.

152452123 is a deficient number, since it is larger than the sum of its proper divisors (2147285).

152452123 is an equidigital number, since it uses as much as digits as its factorization.

152452123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147284.

The product of its digits is 2400, while the sum is 25.

The square root of 152452123 is about 12347.1503999911. The cubic root of 152452123 is about 534.2089488422.

The spelling of 152452123 in words is "one hundred fifty-two million, four hundred fifty-two thousand, one hundred twenty-three".

Divisors: 1 71 2147213 152452123