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974415313 = 3726335549
BaseRepresentation
bin111010000101000…
…110010111010001
32111220112102112001
4322011012113101
53443422242223
6240405034001
733101251654
oct7205062721
92456472461
10974415313
11460039713
122323b5901
13126b4cb11
14935ab89b
155a82a9ad
hex3a1465d1

974415313 has 4 divisors (see below), whose sum is σ = 1000750900. Its totient is φ = 948079728.

The previous prime is 974415311. The next prime is 974415317. The reversal of 974415313 is 313514479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313514479 = 353888143.

It can be written as a sum of positive squares in 2 ways, for example, as 895685184 + 78730129 = 29928^2 + 8873^2 .

It is a cyclic number.

It is not a de Polignac number, because 974415313 - 21 = 974415311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 26335549 = 974415313 / (9 + 7 + 4 + 4 + 1 + 5 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974415311) 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, 13167738 + ... + 13167811.

It is an arithmetic number, because the mean of its divisors is an integer number (250187725).

Almost surely, 2974415313 is an apocalyptic number.

It is an amenable number.

974415313 is a deficient number, since it is larger than the sum of its proper divisors (26335587).

974415313 is a wasteful number, since it uses less digits than its factorization.

974415313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26335586.

The product of its digits is 45360, while the sum is 37.

The square root of 974415313 is about 31215.6261029632. The cubic root of 974415313 is about 991.3979885668.

The spelling of 974415313 in words is "nine hundred seventy-four million, four hundred fifteen thousand, three hundred thirteen".

Divisors: 1 37 26335549 974415313