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2690019 = 322571163
BaseRepresentation
bin1010010000101111100011
312001200000100
422100233203
51142040034
6133353443
731602423
oct12205743
95050010
102690019
111578062
12a98883
13732537
14500483
15382099
hex290be3

2690019 has 12 divisors (see below), whose sum is σ = 3904056. Its totient is φ = 1784832.

The previous prime is 2690003. The next prime is 2690021. The reversal of 2690019 is 9100962.

It is a happy number.

2690019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2690019 - 24 = 2690003 is a prime.

It is a super-2 number, since 2×26900192 = 14472404440722, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2689974 and 2690001.

It is not an unprimeable number, because it can be changed into a prime (2690059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1732 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (325338).

22690019 is an apocalyptic number.

2690019 is a deficient number, since it is larger than the sum of its proper divisors (1214037).

2690019 is a wasteful number, since it uses less digits than its factorization.

2690019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 2690019 is about 1640.1277389277. The cubic root of 2690019 is about 139.0758690762.

The spelling of 2690019 in words is "two million, six hundred ninety thousand, nineteen".

Divisors: 1 3 9 257 771 1163 2313 3489 10467 298891 896673 2690019