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152018135 = 530403627
BaseRepresentation
bin10010000111110…
…01110011010111
3101121001022200022
421003321303113
5302404040020
623030135355
73524063363
oct1103716327
9347038608
10152018135
11788a0525
1242ab155b
1325657679
14162922a3
15d52c625
hex90f9cd7

152018135 has 4 divisors (see below), whose sum is σ = 182421768. Its totient is φ = 121614504.

The previous prime is 152018129. The next prime is 152018137. The reversal of 152018135 is 531810251.

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: 531810251 = 775972893.

It is a cyclic number.

It is not a de Polignac number, because 152018135 - 26 = 152018071 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 (152018137) 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, 15201809 + ... + 15201818.

It is an arithmetic number, because the mean of its divisors is an integer number (45605442).

Almost surely, 2152018135 is an apocalyptic number.

152018135 is a deficient number, since it is larger than the sum of its proper divisors (30403633).

152018135 is an equidigital number, since it uses as much as digits as its factorization.

152018135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30403632.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 152018135 is about 12329.5634553702. The cubic root of 152018135 is about 533.7015532266.

Adding to 152018135 its reverse (531810251), we get a palindrome (683828386).

The spelling of 152018135 in words is "one hundred fifty-two million, eighteen thousand, one hundred thirty-five".

Divisors: 1 5 30403627 152018135