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670472 = 231119401
BaseRepresentation
bin10100011101100001000
31021001201022
42203230020
5132423342
622212012
75461505
oct2435410
91231638
10670472
11418810
12284008
131a623a
141364ac
15d39d2
hexa3b08

670472 has 32 divisors (see below), whose sum is σ = 1447200. Its totient is φ = 288000.

The previous prime is 670471. The next prime is 670487. The reversal of 670472 is 274076.

It is not an unprimeable number, because it can be changed into a prime (670471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472 + ... + 1872.

It is an arithmetic number, because the mean of its divisors is an integer number (45225).

2670472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723600).

670472 is an abundant number, since it is smaller than the sum of its proper divisors (776728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670472 is a wasteful number, since it uses less digits than its factorization.

670472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 670472 is about 818.8235463151. The cubic root of 670472 is about 87.5239444674.

It can be divided in two parts, 6704 and 72, that added together give a palindrome (6776).

The spelling of 670472 in words is "six hundred seventy thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 19 22 38 44 76 88 152 209 401 418 802 836 1604 1672 3208 4411 7619 8822 15238 17644 30476 35288 60952 83809 167618 335236 670472