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7990106 = 215712543
BaseRepresentation
bin11110011110101101011010
3120000221100212
4132132231122
54021140411
6443131122
7124625525
oct36365532
916027325
107990106
1145680a3
122813aa2
131869a97
1410bdbbc
15a7c68b
hex79eb5a

7990106 has 8 divisors (see below), whose sum is σ = 11997504. Its totient is φ = 3990940.

The previous prime is 7990093. The next prime is 7990111. The reversal of 7990106 is 6010997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×79901063 (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871 + ... + 4413.

It is an arithmetic number, because the mean of its divisors is an integer number (1499688).

Almost surely, 27990106 is an apocalyptic number.

7990106 is a deficient number, since it is larger than the sum of its proper divisors (4007398).

7990106 is a wasteful number, since it uses less digits than its factorization.

7990106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 7990106 is about 2826.6775550105. The cubic root of 7990106 is about 199.9175159866.

The spelling of 7990106 in words is "seven million, nine hundred ninety thousand, one hundred six".

Divisors: 1 2 1571 2543 3142 5086 3995053 7990106