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7679142 = 2322947313
BaseRepresentation
bin11101010010110010100110
3112110010210200
4131102302212
53431213032
6432331330
7122162112
oct35226246
915403720
107679142
1143754a9
1226a3b46
13178b393
14103c742
15a1a47c
hex752ca6

7679142 has 48 divisors (see below), whose sum is σ = 17634240. Its totient is φ = 2411136.

The previous prime is 7679129. The next prime is 7679149. The reversal of 7679142 is 2419767.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7679097 and 7679106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7679149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24378 + ... + 24690.

It is an arithmetic number, because the mean of its divisors is an integer number (367380).

Almost surely, 27679142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7679142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8817120).

7679142 is an abundant number, since it is smaller than the sum of its proper divisors (9955098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7679142 is a wasteful number, since it uses less digits than its factorization.

7679142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 394 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 7679142 is about 2771.1264857455. The cubic root of 7679142 is about 197.2896184160.

The spelling of 7679142 in words is "seven million, six hundred seventy-nine thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 29 47 58 87 94 141 174 261 282 313 423 522 626 846 939 1363 1878 2726 2817 4089 5634 8178 9077 12267 14711 18154 24534 27231 29422 44133 54462 81693 88266 132399 163386 264798 426619 853238 1279857 2559714 3839571 7679142