Search a number
-
+
64315349 = 79187907
BaseRepresentation
bin1111010101010…
…1111111010101
311111000120001222
43311111333111
5112431042344
610214300125
71410446210
oct365257725
9144016058
1064315349
113333908a
1219657645
131042b227
148782777
1559a65ee
hex3d55fd5

64315349 has 4 divisors (see below), whose sum is σ = 73503264. Its totient is φ = 55127436.

The previous prime is 64315327. The next prime is 64315351. The reversal of 64315349 is 94351346.

It is a happy number.

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 not a de Polignac number, because 64315349 - 28 = 64315093 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64315249) 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, 4593947 + ... + 4593960.

It is an arithmetic number, because the mean of its divisors is an integer number (18375816).

Almost surely, 264315349 is an apocalyptic number.

It is an amenable number.

64315349 is a deficient number, since it is larger than the sum of its proper divisors (9187915).

64315349 is an equidigital number, since it uses as much as digits as its factorization.

64315349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9187914.

The product of its digits is 38880, while the sum is 35.

The square root of 64315349 is about 8019.6850935682. The cubic root of 64315349 is about 400.6559009802.

The spelling of 64315349 in words is "sixty-four million, three hundred fifteen thousand, three hundred forty-nine".

Divisors: 1 7 9187907 64315349