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2697031 = 19231241
BaseRepresentation
bin1010010010011101000111
312002000122001
422102131013
51142301111
6133450131
731632031
oct12223507
95060561
102697031
111582357
12aa0947
1373579c
14502c51
153841c1
hex292747

2697031 has 12 divisors (see below), whose sum is σ = 2950464. Its totient is φ = 2462400.

The previous prime is 2697007. The next prime is 2697043. The reversal of 2697031 is 1307962.

2697031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-2697031 is a prime.

It is a super-2 number, since 2×26970312 = 14547952429922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2697061) 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, 11071 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (245872).

22697031 is an apocalyptic number.

2697031 is a deficient number, since it is larger than the sum of its proper divisors (253433).

2697031 is a wasteful number, since it uses less digits than its factorization.

2697031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2697031 is about 1642.2639860875. The cubic root of 2697031 is about 139.1966060024.

Subtracting from 2697031 its sum of digits (28), we obtain a triangular number (2697003 = T2322).

The spelling of 2697031 in words is "two million, six hundred ninety-seven thousand, thirty-one".

Divisors: 1 19 31 241 361 589 4579 7471 11191 87001 141949 2697031