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13780333 = 711231753
BaseRepresentation
bin110100100100…
…010101101101
3221221010001201
4310210111231
512011432313
61211205501
7225062620
oct64442555
927833051
1013780333
117862406
124746891
132b16458
141b89db7
1513230dd
hexd2456d

13780333 has 8 divisors (see below), whose sum is σ = 15771968. Its totient is φ = 11794464.

The previous prime is 13780331. The next prime is 13780369. The reversal of 13780333 is 33308731.

13780333 is digitally balanced in base 2 and base 3, because in such bases 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 13780333 - 21 = 13780331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780331) 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, 6985 + ... + 8737.

It is an arithmetic number, because the mean of its divisors is an integer number (1971496).

Almost surely, 213780333 is an apocalyptic number.

It is an amenable number.

13780333 is a deficient number, since it is larger than the sum of its proper divisors (1991635).

13780333 is a wasteful number, since it uses less digits than its factorization.

13780333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 13780333 is about 3712.1870911903. The cubic root of 13780333 is about 239.7470309084.

The spelling of 13780333 in words is "thirteen million, seven hundred eighty thousand, three hundred thirty-three".

Divisors: 1 7 1123 1753 7861 12271 1968619 13780333