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152024231 = 374108763
BaseRepresentation
bin10010000111110…
…11010010100111
3101121001122001002
421003323102213
5302404233411
623030223515
73524120222
oct1103732247
9347048032
10152024231
11788a5067
1242ab4b9b
132565a388
14162945b9
15d52e33b
hex90fb4a7

152024231 has 4 divisors (see below), whose sum is σ = 156133032. Its totient is φ = 147915432.

The previous prime is 152024167. The next prime is 152024237. The reversal of 152024231 is 132420251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132420251 = 314271621.

It is a cyclic number.

It is not a de Polignac number, because 152024231 - 26 = 152024167 is a prime.

It is a super-2 number, since 2×1520242312 = 46222733622282722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152024237) 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, 2054345 + ... + 2054418.

It is an arithmetic number, because the mean of its divisors is an integer number (39033258).

Almost surely, 2152024231 is an apocalyptic number.

152024231 is a deficient number, since it is larger than the sum of its proper divisors (4108801).

152024231 is an equidigital number, since it uses as much as digits as its factorization.

152024231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108800.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 152024231 is about 12329.8106635909. The cubic root of 152024231 is about 533.7086870272.

Adding to 152024231 its reverse (132420251), we get a palindrome (284444482).

The spelling of 152024231 in words is "one hundred fifty-two million, twenty-four thousand, two hundred thirty-one".

Divisors: 1 37 4108763 152024231