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672747243 = 3749436481
BaseRepresentation
bin101000000110010…
…100111011101011
31201212220002201120
4220012110323223
52334210402433
6150431150323
722446154140
oct5006247353
91655802646
10672747243
11315825a63
121693753a3
13a94b99bc
14654c23c7
153e0dc7b3
hex28194eeb

672747243 has 16 divisors (see below), whose sum is σ = 1025504256. Its totient is φ = 384289920.

The previous prime is 672747203. The next prime is 672747247. The reversal of 672747243 is 342747276.

672747243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 672747243 - 214 = 672730859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672747195 and 672747204.

It is not an unprimeable number, because it can be changed into a prime (672747247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100563 + ... + 107043.

It is an arithmetic number, because the mean of its divisors is an integer number (64094016).

Almost surely, 2672747243 is an apocalyptic number.

672747243 is a deficient number, since it is larger than the sum of its proper divisors (352757013).

672747243 is a wasteful number, since it uses less digits than its factorization.

672747243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11434.

The product of its digits is 395136, while the sum is 42.

The square root of 672747243 is about 25937.3715514892. The cubic root of 672747243 is about 876.2283669431.

The spelling of 672747243 in words is "six hundred seventy-two million, seven hundred forty-seven thousand, two hundred forty-three".

Divisors: 1 3 7 21 4943 6481 14829 19443 34601 45367 103803 136101 32035583 96106749 224249081 672747243