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10505006051 = 26893906659
BaseRepresentation
bin10011100100010010…
…11010101111100011
31000010010000121012012
421302021122233203
5133003240143201
64454222423135
7521216035541
oct116211325743
930103017165
1010505006051
114500890591
122052131aab
13cb5506017
1471925cd91
154173b45bb
hex27225abe3

10505006051 has 4 divisors (see below), whose sum is σ = 10508915400. Its totient is φ = 10501096704.

The previous prime is 10505006047. The next prime is 10505006063. The reversal of 10505006051 is 15060050501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15060050501 = 131911417779.

It is a cyclic number.

It is not a de Polignac number, because 10505006051 - 22 = 10505006047 is a prime.

It is a super-2 number, since 2×105050060512 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10505006011) 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, 1950641 + ... + 1956018.

It is an arithmetic number, because the mean of its divisors is an integer number (2627228850).

Almost surely, 210505006051 is an apocalyptic number.

10505006051 is a deficient number, since it is larger than the sum of its proper divisors (3909349).

10505006051 is an equidigital number, since it uses as much as digits as its factorization.

10505006051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909348.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 10505006051 its reverse (15060050501), we get a palindrome (25565056552).

The spelling of 10505006051 in words is "ten billion, five hundred five million, six thousand, fifty-one".

Divisors: 1 2689 3906659 10505006051