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673972 = 22132997
BaseRepresentation
bin10100100100010110100
31021020111221
42210202310
5133031342
622240124
75504635
oct2444264
91236457
10673972
11420402
12286044
131a7a00
1413788c
15d4a67
hexa48b4

673972 has 18 divisors (see below), whose sum is σ = 1278438. Its totient is φ = 310752.

The previous prime is 673961. The next prime is 673979. The reversal of 673972 is 279376.

It can be written as a sum of positive squares in 3 ways, for example, as 27556 + 646416 = 166^2 + 804^2 .

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178 + ... + 1174.

2673972 is an apocalyptic number.

It is an amenable number.

673972 is a deficient number, since it is larger than the sum of its proper divisors (604466).

673972 is a wasteful number, since it uses less digits than its factorization.

673972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1012 counting only the distinct ones).

The product of its digits is 15876, while the sum is 34.

The square root of 673972 is about 820.9579770000. The cubic root of 673972 is about 87.6759778133.

The spelling of 673972 in words is "six hundred seventy-three thousand, nine hundred seventy-two".

Divisors: 1 2 4 13 26 52 169 338 676 997 1994 3988 12961 25922 51844 168493 336986 673972