Search a number
-
+
10021442323 = 312571257869
BaseRepresentation
bin10010101010101001…
…10001001100010011
3221212102010000110111
421111110301030103
5131010442123243
64334230142151
7503224566004
oct112524611423
927772100414
1010021442323
11428292aa42
121b381b1957
13c39287239
146b0d451ab
153d9be639d
hex255531313

10021442323 has 8 divisors (see below), whose sum is σ = 10384974720. Its totient is φ = 9660426240.

The previous prime is 10021442317. The next prime is 10021442339. The reversal of 10021442323 is 32324412001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10021442323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021442294 and 10021442303.

It is not an unprimeable number, because it can be changed into a prime (10021442303) 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, 620968 + ... + 636901.

It is an arithmetic number, because the mean of its divisors is an integer number (1298121840).

Almost surely, 210021442323 is an apocalyptic number.

10021442323 is a deficient number, since it is larger than the sum of its proper divisors (363532397).

10021442323 is a wasteful number, since it uses less digits than its factorization.

10021442323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258157.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 10021442323 its reverse (32324412001), we get a palindrome (42345854324).

The spelling of 10021442323 in words is "ten billion, twenty-one million, four hundred forty-two thousand, three hundred twenty-three".

Divisors: 1 31 257 7967 1257869 38993939 323272333 10021442323