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674244 = 22342081
BaseRepresentation
bin10100100100111000100
31021020220000
42210213010
5133033434
622241300
75505504
oct2444704
91236800
10674244
1142062a
12286230
131a7b7c
14137a04
15d4b99
hexa49c4

674244 has 30 divisors (see below), whose sum is σ = 1763454. Its totient is φ = 224640.

The previous prime is 674239. The next prime is 674249. The reversal of 674244 is 442476.

It is an interprime number because it is at equal distance from previous prime (674239) and next prime (674249).

It can be written as a sum of positive squares in only one way, i.e., 544644 + 129600 = 738^2 + 360^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (674249) by changing a digit.

674244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 717 + ... + 1364.

2674244 is an apocalyptic number.

It is an amenable number.

674244 is an abundant number, since it is smaller than the sum of its proper divisors (1089210).

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

674244 is a wasteful number, since it uses less digits than its factorization.

674244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 2086 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 674244 is about 821.1236204129. The cubic root of 674244 is about 87.6877709138.

It can be divided in two parts, 6742 and 44, that added together give a triangular number (6786 = T116).

The spelling of 674244 in words is "six hundred seventy-four thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 2081 4162 6243 8324 12486 18729 24972 37458 56187 74916 112374 168561 224748 337122 674244