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13790789 = 191096659
BaseRepresentation
bin110100100110…
…111001000101
3221221122101222
4310212321011
512012301124
61211330125
7225135245
oct64467105
927848358
1013790789
11786a251
124750945
132b1b13c
141b8db25
15132625e
hexd26e45

13790789 has 8 divisors (see below), whose sum is σ = 14652000. Its totient is φ = 12943152.

The previous prime is 13790779. The next prime is 13790797. The reversal of 13790789 is 98709731.

13790789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13790789 - 212 = 13786693 is a prime.

It is a super-2 number, since 2×137907892 = 380371722485042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13790729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (1831500).

Almost surely, 213790789 is an apocalyptic number.

13790789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13790789 is a deficient number, since it is larger than the sum of its proper divisors (861211).

13790789 is a wasteful number, since it uses less digits than its factorization.

13790789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 13790789 is about 3713.5951583338. The cubic root of 13790789 is about 239.8076525978.

The spelling of 13790789 in words is "thirteen million, seven hundred ninety thousand, seven hundred eighty-nine".

Divisors: 1 19 109 2071 6659 126521 725831 13790789