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13940793 = 3229311723
BaseRepresentation
bin110101001011…
…100000111001
3222020021011200
4311023200321
512032101133
61214444413
7226331466
oct65134071
928207150
1013940793
117961a19
124803709
132b714b9
141bcc66d
151355913
hexd4b839

13940793 has 24 divisors (see below), whose sum is σ = 21515520. Its totient is φ = 8678880.

The previous prime is 13940789. The next prime is 13940803. The reversal of 13940793 is 39704931.

13940793 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13940793 - 22 = 13940789 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13940753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7230 + ... + 8952.

It is an arithmetic number, because the mean of its divisors is an integer number (896480).

Almost surely, 213940793 is an apocalyptic number.

It is an amenable number.

13940793 is a deficient number, since it is larger than the sum of its proper divisors (7574727).

13940793 is a wasteful number, since it uses less digits than its factorization.

13940793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13940793 is about 3733.7371359002. The cubic root of 13940793 is about 240.6739908794.

The spelling of 13940793 in words is "thirteen million, nine hundred forty thousand, seven hundred ninety-three".

Divisors: 1 3 9 29 31 87 93 261 279 899 1723 2697 5169 8091 15507 49967 53413 149901 160239 449703 480717 1548977 4646931 13940793