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15144125 = 53971249
BaseRepresentation
bin111001110001…
…010010111101
31001111101211112
4321301102331
512334103000
61300331405
7242502653
oct71612275
931441745
1015144125
118604007
1250a3b65
1331a3129
142022dd3
1514e2235
hexe714bd

15144125 has 16 divisors (see below), whose sum is σ = 19110000. Its totient is φ = 11980800.

The previous prime is 15144109. The next prime is 15144139. The reversal of 15144125 is 52144151.

It can be written as a sum of positive squares in 8 ways, for example, as 5938969 + 9205156 = 2437^2 + 3034^2 .

It is not a de Polignac number, because 15144125 - 24 = 15144109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15144125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11501 + ... + 12749.

It is an arithmetic number, because the mean of its divisors is an integer number (1194375).

Almost surely, 215144125 is an apocalyptic number.

It is an amenable number.

15144125 is a deficient number, since it is larger than the sum of its proper divisors (3965875).

15144125 is an equidigital number, since it uses as much as digits as its factorization.

15144125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1351 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 15144125 is about 3891.5453228762. The cubic root of 15144125 is about 247.4085639863.

Adding to 15144125 its reverse (52144151), we get a palindrome (67288276).

The spelling of 15144125 in words is "fifteen million, one hundred forty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 97 125 485 1249 2425 6245 12125 31225 121153 156125 605765 3028825 15144125