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670707344 = 2441919209
BaseRepresentation
bin100111111110100…
…010111010010000
31201202001110111202
4213332202322100
52333200113334
6150315330332
722422626666
oct4776427220
91652043452
10670707344
1131466239a
121687509a8
13a8c54368
1465110c36
153dd3817e
hex27fa2e90

670707344 has 10 divisors (see below), whose sum is σ = 1299495510. Its totient is φ = 335353664.

The previous prime is 670707329. The next prime is 670707361. The reversal of 670707344 is 443707076.

It can be written as a sum of positive squares in only one way, i.e., 353440000 + 317267344 = 18800^2 + 17812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 670707298 and 670707307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20959589 + ... + 20959620.

It is an arithmetic number, because the mean of its divisors is an integer number (129949551).

Almost surely, 2670707344 is an apocalyptic number.

It is an amenable number.

670707344 is a deficient number, since it is larger than the sum of its proper divisors (628788166).

670707344 is a wasteful number, since it uses less digits than its factorization.

670707344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41919217 (or 41919211 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 38.

The square root of 670707344 is about 25898.0181481132. The cubic root of 670707344 is about 875.3418393330.

The spelling of 670707344 in words is "six hundred seventy million, seven hundred seven thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 41919209 83838418 167676836 335353672 670707344