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7990827 = 313215761
BaseRepresentation
bin11110011110111000101011
3120000222100120
4132132320223
54021201302
6443134323
7124630605
oct36367053
916028316
107990827
114568699
1228143a3
13186a200
1410c0175
15a7c9bc
hex79ee2b

7990827 has 12 divisors (see below), whose sum is σ = 11537784. Its totient is φ = 4917120.

The previous prime is 7990823. The next prime is 7990847. The reversal of 7990827 is 7280997.

It is not a de Polignac number, because 7990827 - 22 = 7990823 is a prime.

It is a super-2 number, since 2×79908272 = 127706632287858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7990823) 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, 7374 + ... + 8387.

It is an arithmetic number, because the mean of its divisors is an integer number (961482).

Almost surely, 27990827 is an apocalyptic number.

7990827 is a deficient number, since it is larger than the sum of its proper divisors (3546957).

7990827 is a wasteful number, since it uses less digits than its factorization.

7990827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15790 (or 15777 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 7990827 is about 2826.8050870196. The cubic root of 7990827 is about 199.9235290981.

The spelling of 7990827 in words is "seven million, nine hundred ninety thousand, eight hundred twenty-seven".

Divisors: 1 3 13 39 169 507 15761 47283 204893 614679 2663609 7990827