Search a number
-
+
979299431 = 1189027221
BaseRepresentation
bin111010010111101…
…110110001100111
32112020201120021022
4322113232301213
54001200040211
6241101441355
733160623245
oct7227566147
92466646238
10979299431
11462875180
12233b7025b
13127b6cc26
14940bd795
155ae92bdb
hex3a5eec67

979299431 has 4 divisors (see below), whose sum is σ = 1068326664. Its totient is φ = 890272200.

The previous prime is 979299401. The next prime is 979299437. The reversal of 979299431 is 134992979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134992979 = 1112272089.

It is a cyclic number.

It is not a de Polignac number, because 979299431 - 26 = 979299367 is a prime.

It is a super-2 number, since 2×9792994312 = 1918054751113847522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979299437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44513600 + ... + 44513621.

It is an arithmetic number, because the mean of its divisors is an integer number (267081666).

Almost surely, 2979299431 is an apocalyptic number.

979299431 is a deficient number, since it is larger than the sum of its proper divisors (89027233).

979299431 is a wasteful number, since it uses less digits than its factorization.

979299431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89027232.

The product of its digits is 1102248, while the sum is 53.

The square root of 979299431 is about 31293.7602566390. The cubic root of 979299431 is about 993.0516424826.

The spelling of 979299431 in words is "nine hundred seventy-nine million, two hundred ninety-nine thousand, four hundred thirty-one".

Divisors: 1 11 89027221 979299431