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670667031 = 3274518559
BaseRepresentation
bin100111111110011…
…001000100010111
31201201222102012200
4213332121010113
52333142321111
6150314415543
722422401316
oct4776310427
91651872180
10670667031
11314635081
121687315b3
13a8c3bbc8
146510027d
153dd2b256
hex27f99117

670667031 has 6 divisors (see below), whose sum is σ = 968741280. Its totient is φ = 447111348.

The previous prime is 670667009. The next prime is 670667057. The reversal of 670667031 is 130766076.

It is not a de Polignac number, because 670667031 - 25 = 670666999 is a prime.

It is a super-2 number, since 2×6706670312 = 899588532940709922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670667071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37259271 + ... + 37259288.

It is an arithmetic number, because the mean of its divisors is an integer number (161456880).

Almost surely, 2670667031 is an apocalyptic number.

670667031 is a deficient number, since it is larger than the sum of its proper divisors (298074249).

670667031 is a wasteful number, since it uses less digits than its factorization.

670667031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74518565 (or 74518562 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 670667031 is about 25897.2398336193. The cubic root of 670667031 is about 875.3243014491.

It can be divided in two parts, 6706 and 67031, that added together give a palindrome (73737).

The spelling of 670667031 in words is "six hundred seventy million, six hundred sixty-seven thousand, thirty-one".

Divisors: 1 3 9 74518559 223555677 670667031