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136951253 = 2910146757
BaseRepresentation
bin10000010100110…
…11010111010101
3100112200211210122
420022123113111
5240024420003
621331201325
73252031535
oct1012332725
9315624718
10136951253
117033a55a
1239a46245
13224b075a
141428d4c5
15c053238
hex829b5d5

136951253 has 8 divisors (see below), whose sum is σ = 143079480. Its totient is φ = 130916800.

The previous prime is 136951247. The next prime is 136951267. The reversal of 136951253 is 352159631.

136951253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 90193009 + 46758244 = 9497^2 + 6838^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136951253 - 24 = 136951237 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 (136951553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20450 + ... + 26307.

It is an arithmetic number, because the mean of its divisors is an integer number (17884935).

Almost surely, 2136951253 is an apocalyptic number.

It is an amenable number.

136951253 is a deficient number, since it is larger than the sum of its proper divisors (6128227).

136951253 is a wasteful number, since it uses less digits than its factorization.

136951253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46887.

The product of its digits is 24300, while the sum is 35.

The square root of 136951253 is about 11702.6173568138. The cubic root of 136951253 is about 515.4525233623.

The spelling of 136951253 in words is "one hundred thirty-six million, nine hundred fifty-one thousand, two hundred fifty-three".

Divisors: 1 29 101 2929 46757 1355953 4722457 136951253