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6889401 = 33476189
BaseRepresentation
bin11010010001111110111001
3110222000111000
4122101332321
53230430101
6403355213
7112362501
oct32217671
913860430
106889401
113986122
122382b09
131572a8c
14cb4a01
15911486
hex691fb9

6889401 has 32 divisors (see below), whose sum is σ = 10713600. Its totient is φ = 4371840.

The previous prime is 6889391. The next prime is 6889411. The reversal of 6889401 is 1049886.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6889391) and next prime (6889411).

It is not a de Polignac number, because 6889401 - 27 = 6889273 is a prime.

It is a super-2 number, since 2×68894012 = 94927692277602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6889411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77365 + ... + 77453.

It is an arithmetic number, because the mean of its divisors is an integer number (334800).

Almost surely, 26889401 is an apocalyptic number.

6889401 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6889401 is a deficient number, since it is larger than the sum of its proper divisors (3824199).

6889401 is a wasteful number, since it uses less digits than its factorization.

6889401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 6889401 is about 2624.7668467885. The cubic root of 6889401 is about 190.2802972764.

The spelling of 6889401 in words is "six million, eight hundred eighty-nine thousand, four hundred one".

Divisors: 1 3 9 27 47 61 89 141 183 267 423 549 801 1269 1647 2403 2867 4183 5429 8601 12549 16287 25803 37647 48861 77409 112941 146583 255163 765489 2296467 6889401