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2990086 = 211135913
BaseRepresentation
bin1011011010000000000110
312121220121221
423122000012
51231140321
6144030554
734262311
oct13320006
95556557
102990086
111762550
12100245a
13808ca8
1457b978
153e0e41
hex2da006

2990086 has 8 divisors (see below), whose sum is σ = 4892904. Its totient is φ = 1359120.

The previous prime is 2990083. The next prime is 2990123. The reversal of 2990086 is 6800992.

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

It is a super-2 number, since 2×29900862 = 17881228574792, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67935 + ... + 67978.

It is an arithmetic number, because the mean of its divisors is an integer number (611613).

22990086 is an apocalyptic number.

2990086 is a deficient number, since it is larger than the sum of its proper divisors (1902818).

2990086 is a wasteful number, since it uses less digits than its factorization.

2990086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135926.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 2990086 is about 1729.1865139423. The cubic root of 2990086 is about 144.0659098999.

The spelling of 2990086 in words is "two million, nine hundred ninety thousand, eighty-six".

Divisors: 1 2 11 22 135913 271826 1495043 2990086