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7420068 = 2232712903
BaseRepresentation
bin11100010011100010100100
3111221222102100
4130103202210
53344420233
6423012100
7120032565
oct34234244
914858370
107420068
114208897
12259a030
1316ca496
14db216c
159b8813
hex7138a4

7420068 has 36 divisors (see below), whose sum is σ = 19027008. Its totient is φ = 2437680.

The previous prime is 7420043. The next prime is 7420069. The reversal of 7420068 is 8600247.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7420069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1105 + ... + 4007.

It is an arithmetic number, because the mean of its divisors is an integer number (528528).

Almost surely, 27420068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7420068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9513504).

7420068 is an abundant number, since it is smaller than the sum of its proper divisors (11606940).

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

7420068 is a wasteful number, since it uses less digits than its factorization.

7420068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984 (or 2979 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 7420068 is about 2723.9801761393. The cubic root of 7420068 is about 195.0455120593.

The spelling of 7420068 in words is "seven million, four hundred twenty thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 426 639 852 1278 2556 2903 5806 8709 11612 17418 26127 34836 52254 104508 206113 412226 618339 824452 1236678 1855017 2473356 3710034 7420068