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670113831 = 31924331429
BaseRepresentation
bin100111111100010…
…010000000100111
31201200221022100210
4213330102000213
52333022120311
6150254510503
722414605432
oct4774220047
91650838323
10670113831
11314297492
12168505433
13a8aa717a
1464dd8819
153dc6c3a6
hex27f12027

670113831 has 24 divisors (see below), whose sum is σ = 945824880. Its totient is φ = 421956864.

The previous prime is 670113791. The next prime is 670113859. The reversal of 670113831 is 138311076.

It is not a de Polignac number, because 670113831 - 29 = 670113319 is a prime.

It is a super-2 number, since 2×6701138312 = 898105092994993122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670113131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468225 + ... + 469653.

It is an arithmetic number, because the mean of its divisors is an integer number (39409370).

Almost surely, 2670113831 is an apocalyptic number.

670113831 is a deficient number, since it is larger than the sum of its proper divisors (275711049).

670113831 is a wasteful number, since it uses less digits than its factorization.

670113831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 670113831 is about 25886.5569553002. The cubic root of 670113831 is about 875.0835646994.

The spelling of 670113831 in words is "six hundred seventy million, one hundred thirteen thousand, eight hundred thirty-one".

Divisors: 1 3 19 57 361 433 1083 1299 1429 4287 8227 24681 27151 81453 156313 468939 515869 618757 1547607 1856271 11756383 35269149 223371277 670113831