Search a number
-
+
4022979 = 312710559
BaseRepresentation
bin1111010110001011000011
321120101111020
433112023003
52012213404
6222120523
746123542
oct17261303
97511436
104022979
1122a8584
121420143
13aab17c
1476a159
15546ed9
hex3d62c3

4022979 has 8 divisors (see below), whose sum is σ = 5406720. Its totient is φ = 2660616.

The previous prime is 4022959. The next prime is 4022981. The reversal of 4022979 is 9792204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4022979 - 217 = 3891907 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4022929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899 + ... + 5660.

It is an arithmetic number, because the mean of its divisors is an integer number (675840).

Almost surely, 24022979 is an apocalyptic number.

4022979 is a deficient number, since it is larger than the sum of its proper divisors (1383741).

4022979 is a wasteful number, since it uses less digits than its factorization.

4022979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10689.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 4022979 is about 2005.7365230758. The cubic root of 4022979 is about 159.0434990356.

The spelling of 4022979 in words is "four million, twenty-two thousand, nine hundred seventy-nine".

Divisors: 1 3 127 381 10559 31677 1340993 4022979