Search a number
-
+
84007913 = 117637083
BaseRepresentation
bin1010000000111…
…01101111101001
312212002001012012
411000131233221
5133001223123
612200325305
72040025013
oct500355751
9185061165
1084007913
1143469430
1224173835
1314534732
14b22b1b3
157596378
hex501dbe9

84007913 has 4 divisors (see below), whose sum is σ = 91645008. Its totient is φ = 76370820.

The previous prime is 84007879. The next prime is 84007927. The reversal of 84007913 is 31970048.

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 84007913 - 26 = 84007849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84007913.

It is not an unprimeable number, because it can be changed into a prime (84007813) 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, 3818531 + ... + 3818552.

It is an arithmetic number, because the mean of its divisors is an integer number (22911252).

Almost surely, 284007913 is an apocalyptic number.

It is an amenable number.

84007913 is a deficient number, since it is larger than the sum of its proper divisors (7637095).

84007913 is a wasteful number, since it uses less digits than its factorization.

84007913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7637094.

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

The square root of 84007913 is about 9165.5830692870. The cubic root of 84007913 is about 437.9656655947.

The spelling of 84007913 in words is "eighty-four million, seven thousand, nine hundred thirteen".

Divisors: 1 11 7637083 84007913