Search a number
-
+
31424610227 = 43730804889
BaseRepresentation
bin11101010001000011…
…010111111110110011
310000010000221121012212
4131101003113332303
51003324200011402
622234122242335
72161505531303
oct352103277663
9100100847185
1031424610227
111236641185a
1261100563ab
132c6a57c52a
141741725603
15c3dc30952
hex7510d7fb3

31424610227 has 4 divisors (see below), whose sum is σ = 32155415160. Its totient is φ = 30693805296.

The previous prime is 31424610199. The next prime is 31424610233. The reversal of 31424610227 is 72201642413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72201642413 = 97744346829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31424610227 is a prime.

It is a super-2 number, since 2×314246102272 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31424610193 and 31424610202.

It is not an unprimeable number, because it can be changed into a prime (31424610727) 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, 365402402 + ... + 365402487.

It is an arithmetic number, because the mean of its divisors is an integer number (8038853790).

Almost surely, 231424610227 is an apocalyptic number.

31424610227 is a deficient number, since it is larger than the sum of its proper divisors (730804933).

31424610227 is an equidigital number, since it uses as much as digits as its factorization.

31424610227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730804932.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 31424610227 in words is "thirty-one billion, four hundred twenty-four million, six hundred ten thousand, two hundred twenty-seven".

Divisors: 1 43 730804889 31424610227