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680241998 = 2477236617
BaseRepresentation
bin101000100010111…
…010101101001110
31202101222212121002
4220202322231032
52343120220443
6151255540302
722566650552
oct5042725516
91671885532
10680241998
11319a84977
1216b98a692
13aac12177
14664b3862
153eabd2b8
hex288bab4e

680241998 has 8 divisors (see below), whose sum is σ = 1042072992. Its totient is φ = 332884336.

The previous prime is 680241979. The next prime is 680242001. The reversal of 680241998 is 899142086.

680241998 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 a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3618215 + ... + 3618402.

It is an arithmetic number, because the mean of its divisors is an integer number (130259124).

Almost surely, 2680241998 is an apocalyptic number.

680241998 is a deficient number, since it is larger than the sum of its proper divisors (361830994).

680241998 is a wasteful number, since it uses less digits than its factorization.

680241998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236666.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 680241998 is about 26081.4493078893. The cubic root of 680241998 is about 879.4702381366.

The spelling of 680241998 in words is "six hundred eighty million, two hundred forty-one thousand, nine hundred ninety-eight".

Divisors: 1 2 47 94 7236617 14473234 340120999 680241998