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607808137 = 3111954367
BaseRepresentation
bin100100001110100…
…110101010001001
31120100200212000111
4210032212222021
52221044330022
6140151234321
721030166246
oct4416465211
91510625014
10607808137
11292101282
1214b6789a1
1398c008b1
145aa1a5cd
1538561477
hex243a6a89

607808137 has 4 divisors (see below), whose sum is σ = 609762816. Its totient is φ = 605853460.

The previous prime is 607808107. The next prime is 607808153. The reversal of 607808137 is 731808706.

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.

It is a cyclic number.

It is not a de Polignac number, because 607808137 - 215 = 607775369 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 607808137.

It is not an unprimeable number, because it can be changed into a prime (607808107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976873 + ... + 977494.

It is an arithmetic number, because the mean of its divisors is an integer number (152440704).

Almost surely, 2607808137 is an apocalyptic number.

It is an amenable number.

607808137 is a deficient number, since it is larger than the sum of its proper divisors (1954679).

607808137 is a wasteful number, since it uses less digits than its factorization.

607808137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954678.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 607808137 is about 24653.7651688337. The cubic root of 607808137 is about 847.0755958728.

The spelling of 607808137 in words is "six hundred seven million, eight hundred eight thousand, one hundred thirty-seven".

Divisors: 1 311 1954367 607808137