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152405125 = 531219241
BaseRepresentation
bin10010001010110…
…00010010000101
3101121202222112021
421011120102011
5303003431000
623042323141
73530264545
oct1105302205
9347688467
10152405125
1179035254
12430594b1
1325761862
1416353325
15d5a711a
hex9158485

152405125 has 8 divisors (see below), whose sum is σ = 190201752. Its totient is φ = 121924000.

The previous prime is 152405117. The next prime is 152405131. The reversal of 152405125 is 521504251.

It can be written as a sum of positive squares in 4 ways, for example, as 4004001 + 148401124 = 2001^2 + 12182^2 .

It is not a de Polignac number, because 152405125 - 23 = 152405117 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152405125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609496 + ... + 609745.

It is an arithmetic number, because the mean of its divisors is an integer number (23775219).

Almost surely, 2152405125 is an apocalyptic number.

It is an amenable number.

152405125 is a deficient number, since it is larger than the sum of its proper divisors (37796627).

152405125 is an equidigital number, since it uses as much as digits as its factorization.

152405125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219256 (or 1219246 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 152405125 is about 12345.2470611163. The cubic root of 152405125 is about 534.1540478191.

Adding to 152405125 its reverse (521504251), we get a palindrome (673909376).

The spelling of 152405125 in words is "one hundred fifty-two million, four hundred five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1219241 6096205 30481025 152405125