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7894013 = 38320611
BaseRepresentation
bin11110000111001111111101
3112212001112212
4132013033331
54010102023
6441110205
7124045421
oct36071775
915761485
107894013
114501986
122788365
13183511a
141096b81
15a5de78
hex7873fd

7894013 has 4 divisors (see below), whose sum is σ = 7915008. Its totient is φ = 7873020.

The previous prime is 7893997. The next prime is 7894021. The reversal of 7894013 is 3104987.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7894013 - 24 = 7893997 is a prime.

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 (7894043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9923 + ... + 10688.

It is an arithmetic number, because the mean of its divisors is an integer number (1978752).

Almost surely, 27894013 is an apocalyptic number.

It is an amenable number.

7894013 is a deficient number, since it is larger than the sum of its proper divisors (20995).

7894013 is a wasteful number, since it uses less digits than its factorization.

7894013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20994.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 7894013 is about 2809.6286231458. The cubic root of 7894013 is about 199.1128456040.

The spelling of 7894013 in words is "seven million, eight hundred ninety-four thousand, thirteen".

Divisors: 1 383 20611 7894013