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7988772 = 2231160521
BaseRepresentation
bin11110011110011000100100
3120000212112110
4132132120210
54021120042
6443121020
7124621611
oct36363044
916025473
107988772
1145670a0
122813170
1318692ac
1410bd508
15a7c09c
hex79e624

7988772 has 24 divisors (see below), whose sum is σ = 20335392. Its totient is φ = 2420800.

The previous prime is 7988767. The next prime is 7988789. The reversal of 7988772 is 2778897.

It is a d-powerful number, because it can be written as 72 + 94 + 83 + 87 + 76 + 78 + 211 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30129 + ... + 30392.

It is an arithmetic number, because the mean of its divisors is an integer number (847308).

Almost surely, 27988772 is an apocalyptic number.

It is an amenable number.

7988772 is an abundant number, since it is smaller than the sum of its proper divisors (12346620).

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

7988772 is a wasteful number, since it uses less digits than its factorization.

7988772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60539 (or 60537 counting only the distinct ones).

The product of its digits is 395136, while the sum is 48.

The square root of 7988772 is about 2826.4415790884. The cubic root of 7988772 is about 199.9063895256.

The spelling of 7988772 in words is "seven million, nine hundred eighty-eight thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 60521 121042 181563 242084 363126 665731 726252 1331462 1997193 2662924 3994386 7988772