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136203125 = 5623379
BaseRepresentation
bin10000001111001…
…00101101110101
3100111021211120012
420013210231311
5234332000000
621303150005
73242464442
oct1007445565
9314254505
10136203125
116a979473
1239745305
13222ab086
14141369c9
15be56735
hex81e4b75

136203125 has 28 divisors (see below), whose sum is σ = 178122720. Its totient is φ = 103950000.

The previous prime is 136203121. The next prime is 136203131. The reversal of 136203125 is 521302631.

136203125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136203125 - 22 = 136203121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 136203125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136203121) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 359186 + ... + 359564.

Almost surely, 2136203125 is an apocalyptic number.

It is an amenable number.

136203125 is a deficient number, since it is larger than the sum of its proper divisors (41919595).

136203125 is an frugal number, since it uses more digits than its factorization.

136203125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 136203125 is about 11670.6094528092. The cubic root of 136203125 is about 514.5122160547.

Adding to 136203125 its reverse (521302631), we get a palindrome (657505756).

The spelling of 136203125 in words is "one hundred thirty-six million, two hundred three thousand, one hundred twenty-five".

Divisors: 1 5 23 25 115 125 379 575 625 1895 2875 3125 8717 9475 14375 15625 43585 47375 71875 217925 236875 359375 1089625 1184375 5448125 5921875 27240625 136203125