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136788025 = 5211497411
BaseRepresentation
bin10000010011100…
…11100000111001
3100112101112220011
420021303200321
5240004204100
621323501521
73250451623
oct1011634071
9315345804
10136788025
1170238960
12399878a1
132245437a
1414249c13
15c01ebba
hex8273839

136788025 has 12 divisors (see below), whose sum is σ = 185037264. Its totient is φ = 99482000.

The previous prime is 136788007. The next prime is 136788053. The reversal of 136788025 is 520887631.

It is not a de Polignac number, because 136788025 - 211 = 136785977 is a prime.

It is a super-3 number, since 3×1367880253 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248431 + ... + 248980.

It is an arithmetic number, because the mean of its divisors is an integer number (15419772).

Almost surely, 2136788025 is an apocalyptic number.

It is an amenable number.

136788025 is a deficient number, since it is larger than the sum of its proper divisors (48249239).

136788025 is a wasteful number, since it uses less digits than its factorization.

136788025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497432 (or 497427 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 136788025 is about 11695.6412821187. The cubic root of 136788025 is about 515.2476579295.

The spelling of 136788025 in words is "one hundred thirty-six million, seven hundred eighty-eight thousand, twenty-five".

Divisors: 1 5 11 25 55 275 497411 2487055 5471521 12435275 27357605 136788025