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672748863 = 3509440569
BaseRepresentation
bin101000000110010…
…101010100111111
31201212220011221120
4220012111110333
52334210430423
6150431202023
722446161643
oct5006252477
91655804846
10672748863
113158271a6
12169376313
13a94ba667
14654c2c23
153e0dcee3
hex2819553f

672748863 has 8 divisors (see below), whose sum is σ = 898762800. Its totient is φ = 447617088.

The previous prime is 672748859. The next prime is 672748883. The reversal of 672748863 is 368847276.

672748863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 672748863 - 22 = 672748859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672748883) 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, 218758 + ... + 221811.

It is an arithmetic number, because the mean of its divisors is an integer number (112345350).

Almost surely, 2672748863 is an apocalyptic number.

672748863 is a deficient number, since it is larger than the sum of its proper divisors (226013937).

672748863 is a wasteful number, since it uses less digits than its factorization.

672748863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441081.

The product of its digits is 2709504, while the sum is 51.

The square root of 672748863 is about 25937.4027805407. The cubic root of 672748863 is about 876.2290702726.

The spelling of 672748863 in words is "six hundred seventy-two million, seven hundred forty-eight thousand, eight hundred sixty-three".

Divisors: 1 3 509 1527 440569 1321707 224249621 672748863