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7690288 = 241941617
BaseRepresentation
bin11101010101100000110000
3112110201002111
4131111200300
53432042123
6432455104
7122236444
oct35254060
915421074
107690288
114382911
1226aa494
131793488
141042824
15a1d90d
hex755830

7690288 has 40 divisors (see below), whose sum is σ = 16092720. Its totient is φ = 3548160.

The previous prime is 7690283. The next prime is 7690297. The reversal of 7690288 is 8820967.

It is a self number, because there is not a number n which added to its sum of digits gives 7690288.

It is not an unprimeable number, because it can be changed into a prime (7690283) 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, 12156 + ... + 12772.

It is an arithmetic number, because the mean of its divisors is an integer number (402318).

Almost surely, 27690288 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 7690288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8046360).

7690288 is an abundant number, since it is smaller than the sum of its proper divisors (8402432).

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

7690288 is a wasteful number, since it uses less digits than its factorization.

With its successor (7690289) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (679).

7690288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 7690288 is about 2773.1368520143. The cubic root of 7690288 is about 197.3850252130.

The spelling of 7690288 in words is "seven million, six hundred ninety thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 19 38 41 76 82 152 164 304 328 617 656 779 1234 1558 2468 3116 4936 6232 9872 11723 12464 23446 25297 46892 50594 93784 101188 187568 202376 404752 480643 961286 1922572 3845144 7690288