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10020444551 = 134211830887
BaseRepresentation
bin10010101010100001…
…11101100110000111
3221212100020022202222
421111100331212013
5131010213211201
64334152522555
7503213242025
oct112520754607
927770208688
1010020444551
114282309337
121b379b045b
13c38cc8040
146b0b65715
153d9a9a91b
hex25543d987

10020444551 has 8 divisors (see below), whose sum is σ = 10816886304. Its totient is φ = 9227665440.

The previous prime is 10020444527. The next prime is 10020444571. The reversal of 10020444551 is 15544402001.

10020444551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10020444551 - 218 = 10020182407 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 10020444551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020444571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909971 + ... + 920916.

It is an arithmetic number, because the mean of its divisors is an integer number (1352110788).

Almost surely, 210020444551 is an apocalyptic number.

10020444551 is a deficient number, since it is larger than the sum of its proper divisors (796441753).

10020444551 is a wasteful number, since it uses less digits than its factorization.

10020444551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831321.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 10020444551 its reverse (15544402001), we get a palindrome (25564846552).

The spelling of 10020444551 in words is "ten billion, twenty million, four hundred forty-four thousand, five hundred fifty-one".

Divisors: 1 13 421 5473 1830887 23801531 770803427 10020444551