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136848917 = 199687683
BaseRepresentation
bin10000010100000…
…10011000010101
3100112111122102102
420022002120111
5240013131132
621325051445
73251124302
oct1012023025
9315448372
10136848917
117027a687
12399b6b85
1322475cba
14142640a9
15c032c62
hex8282615

136848917 has 4 divisors (see below), whose sum is σ = 137536800. Its totient is φ = 136161036.

The previous prime is 136848871. The next prime is 136848923. The reversal of 136848917 is 719848631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 719848631 = 1913768841.

It is a cyclic number.

It is not a de Polignac number, because 136848917 - 214 = 136832533 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 (136848937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343643 + ... + 344040.

It is an arithmetic number, because the mean of its divisors is an integer number (34384200).

Almost surely, 2136848917 is an apocalyptic number.

It is an amenable number.

136848917 is a deficient number, since it is larger than the sum of its proper divisors (687883).

136848917 is an equidigital number, since it uses as much as digits as its factorization.

136848917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687882.

The product of its digits is 290304, while the sum is 47.

The square root of 136848917 is about 11698.2441844920. The cubic root of 136848917 is about 515.3241017704.

The spelling of 136848917 in words is "one hundred thirty-six million, eight hundred forty-eight thousand, nine hundred seventeen".

Divisors: 1 199 687683 136848917