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679289901 = 3587385741
BaseRepresentation
bin101000011111010…
…010010000101101
31202100012111120020
4220133102100231
52342344234101
6151223312353
722555604013
oct5037222055
91670174506
10679289901
11319494614
1216b5ab6b9
13aa96a9b4
14663068b3
153e981136
hex287d242d

679289901 has 8 divisors (see below), whose sum is σ = 907265184. Its totient is φ = 452087280.

The previous prime is 679289899. The next prime is 679289903. The reversal of 679289901 is 109982976.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (679289899) and next prime (679289903).

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

It is not a de Polignac number, because 679289901 - 21 = 679289899 is a prime.

It is a super-2 number, since 2×6792899012 = 922869539201179602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679289903) 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, 191110 + ... + 194631.

It is an arithmetic number, because the mean of its divisors is an integer number (113408148).

Almost surely, 2679289901 is an apocalyptic number.

It is an amenable number.

679289901 is a deficient number, since it is larger than the sum of its proper divisors (227975283).

679289901 is a wasteful number, since it uses less digits than its factorization.

679289901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386331.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 679289901 is about 26063.1905376145. The cubic root of 679289901 is about 879.0597313161.

The spelling of 679289901 in words is "six hundred seventy-nine million, two hundred eighty-nine thousand, nine hundred one".

Divisors: 1 3 587 1761 385741 1157223 226429967 679289901