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152115323 = 197772159
BaseRepresentation
bin10010001000100…
…01100001111011
3101121020020222212
421010101201323
5302420142243
623032205335
73524646623
oct1104214173
9347206885
10152115323
1178957548
1242b3984b
132568c989
14162b9883
15d54b318
hex911187b

152115323 has 4 divisors (see below), whose sum is σ = 152887680. Its totient is φ = 151342968.

The previous prime is 152115319. The next prime is 152115331. The reversal of 152115323 is 323511251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323511251 = 746215893.

It is a cyclic number.

It is not a de Polignac number, because 152115323 - 22 = 152115319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152105323) 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, 385883 + ... + 386276.

It is an arithmetic number, because the mean of its divisors is an integer number (38221920).

Almost surely, 2152115323 is an apocalyptic number.

152115323 is a deficient number, since it is larger than the sum of its proper divisors (772357).

152115323 is an equidigital number, since it uses as much as digits as its factorization.

152115323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772356.

The product of its digits is 900, while the sum is 23.

The square root of 152115323 is about 12333.5040844036. The cubic root of 152115323 is about 533.8152640827.

Adding to 152115323 its reverse (323511251), we get a palindrome (475626574).

The spelling of 152115323 in words is "one hundred fifty-two million, one hundred fifteen thousand, three hundred twenty-three".

Divisors: 1 197 772159 152115323