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12890933 = 1141101283
BaseRepresentation
bin110001001011…
…001100110101
3220020221000222
4301023030311
511300002213
61140144125
7214366616
oct61131465
926227028
1012890933
117305170
124398045
132894693
1419d7c0d
1511e9808
hexc4b335

12890933 has 16 divisors (see below), whose sum is σ = 14599872. Its totient is φ = 11280000.

The previous prime is 12890909. The next prime is 12890939. The reversal of 12890933 is 33909821.

12890933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12890933 - 26 = 12890869 is a prime.

It is a super-2 number, since 2×128909332 = 332352307220978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12890893 and 12890902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45410 + ... + 45692.

It is an arithmetic number, because the mean of its divisors is an integer number (912492).

Almost surely, 212890933 is an apocalyptic number.

It is an amenable number.

12890933 is a deficient number, since it is larger than the sum of its proper divisors (1708939).

12890933 is a wasteful number, since it uses less digits than its factorization.

12890933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12890933 is about 3590.3945465645. The cubic root of 12890933 is about 234.4740493467.

The spelling of 12890933 in words is "twelve million, eight hundred ninety thousand, nine hundred thirty-three".

Divisors: 1 11 41 101 283 451 1111 3113 4141 11603 28583 45551 127633 314413 1171903 12890933