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10042021213 = 71434574459
BaseRepresentation
bin10010101101000110…
…10001010101011101
3221220211211112101121
421112203101111131
5131031224134323
64340243210541
7503564525530
oct112643212535
927824745347
1010042021213
114293506194
121b43076a51
13c40610cb3
146b3980a17
153db90da5d
hex2568d155d

10042021213 has 4 divisors (see below), whose sum is σ = 11476595680. Its totient is φ = 8607446748.

The previous prime is 10042021163. The next prime is 10042021217. The reversal of 10042021213 is 31212024001.

10042021213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31212024001 = 269116029829.

It is a cyclic number.

It is not a de Polignac number, because 10042021213 - 29 = 10042020701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10042021217) 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 3 ways as a sum of consecutive naturals, for example, 717287223 + ... + 717287236.

It is an arithmetic number, because the mean of its divisors is an integer number (2869148920).

Almost surely, 210042021213 is an apocalyptic number.

It is an amenable number.

10042021213 is a deficient number, since it is larger than the sum of its proper divisors (1434574467).

10042021213 is an equidigital number, since it uses as much as digits as its factorization.

10042021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434574466.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10042021213 its reverse (31212024001), we get a palindrome (41254045214).

The spelling of 10042021213 in words is "ten billion, forty-two million, twenty-one thousand, two hundred thirteen".

Divisors: 1 7 1434574459 10042021213