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7999056 = 2432134273
BaseRepresentation
bin11110100000111001010000
3120001101122100
4132200321100
54021432211
6443240400
7124663602
oct36407120
916041570
107999056
11457389a
122819100
131870b90
1410c3172
15a80156
hex7a0e50

7999056 has 60 divisors (see below), whose sum is σ = 24113908. Its totient is φ = 2460672.

The previous prime is 7999051. The next prime is 7999081. The reversal of 7999056 is 6509997.

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 6350400 = 1284^2 + 2520^2 .

It is a super-2 number, since 2×79990562 = 127969793782272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7999051) 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, 265 + ... + 4008.

Almost surely, 27999056 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 7999056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12056954).

7999056 is an abundant number, since it is smaller than the sum of its proper divisors (16114852).

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

7999056 is a wasteful number, since it uses less digits than its factorization.

7999056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 7999056 is about 2828.2602426227. The cubic root of 7999056 is about 199.9921330239.

The spelling of 7999056 in words is "seven million, nine hundred ninety-nine thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 4273 8546 12819 17092 25638 34184 38457 51276 55549 68368 76914 102552 111098 153828 166647 205104 222196 307656 333294 444392 499941 615312 666588 888784 999882 1333176 1999764 2666352 3999528 7999056