Search a number
-
+
10821425873 = 67161513819
BaseRepresentation
bin10100001010000000…
…11101101011010001
31000221011102101120212
422011000131223101
5134130241111443
64545444413505
7532110413366
oct120500355321
930834371525
1010821425873
11465345a475
1221200a7295
131035c3279b
147492a846d
15435068618
hex28501dad1

10821425873 has 4 divisors (see below), whose sum is σ = 10982939760. Its totient is φ = 10659911988.

The previous prime is 10821425863. The next prime is 10821425911. The reversal of 10821425873 is 37852412801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10821425873 - 26 = 10821425809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10821425873.

It is not an unprimeable number, because it can be changed into a prime (10821425863) 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, 80756843 + ... + 80756976.

It is an arithmetic number, because the mean of its divisors is an integer number (2745734940).

Almost surely, 210821425873 is an apocalyptic number.

It is an amenable number.

10821425873 is a deficient number, since it is larger than the sum of its proper divisors (161513887).

10821425873 is an equidigital number, since it uses as much as digits as its factorization.

10821425873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161513886.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 10821425873 in words is "ten billion, eight hundred twenty-one million, four hundred twenty-five thousand, eight hundred seventy-three".

Divisors: 1 67 161513819 10821425873