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4912931 = 7962189
BaseRepresentation
bin10010101111011100100011
3100020121021102
4102233130203
52224203211
6253145015
756521262
oct22573443
910217242
104912931
112856181
12178b16b
13103027a
1491c5d9
15670a3b
hex4af723

4912931 has 4 divisors (see below), whose sum is σ = 4975200. Its totient is φ = 4850664.

The previous prime is 4912903. The next prime is 4912937. The reversal of 4912931 is 1392194.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4912931 is a prime.

It is a super-2 number, since 2×49129312 = 48273782021522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4912894 and 4912903.

It is not an unprimeable number, because it can be changed into a prime (4912937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31016 + ... + 31173.

It is an arithmetic number, because the mean of its divisors is an integer number (1243800).

Almost surely, 24912931 is an apocalyptic number.

4912931 is a deficient number, since it is larger than the sum of its proper divisors (62269).

4912931 is an equidigital number, since it uses as much as digits as its factorization.

4912931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62268.

The product of its digits is 1944, while the sum is 29.

The square root of 4912931 is about 2216.5132528365. The cubic root of 4912931 is about 169.9992041485. Note that the first 3 decimals are identical.

The spelling of 4912931 in words is "four million, nine hundred twelve thousand, nine hundred thirty-one".

Divisors: 1 79 62189 4912931