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10420402453 = 30733942679
BaseRepresentation
bin10011011010001101…
…01011100100010101
3222220012211021212121
421231012223210111
5132320110334303
64442001215541
7516140650036
oct115506534425
928805737777
1010420402453
11446805565a
1220299315b1
13ca0b23416
1470bd18a8d
1540ec519bd
hex26d1ab915

10420402453 has 4 divisors (see below), whose sum is σ = 10454345440. Its totient is φ = 10386459468.

The previous prime is 10420402439. The next prime is 10420402457. The reversal of 10420402453 is 35420402401.

It is a happy number.

10420402453 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10420402453 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 (10420402457) 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, 16971033 + ... + 16971646.

It is an arithmetic number, because the mean of its divisors is an integer number (2613586360).

Almost surely, 210420402453 is an apocalyptic number.

It is an amenable number.

10420402453 is a deficient number, since it is larger than the sum of its proper divisors (33942987).

10420402453 is an equidigital number, since it uses as much as digits as its factorization.

10420402453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33942986.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 10420402453 its reverse (35420402401), we get a palindrome (45840804854).

The spelling of 10420402453 in words is "ten billion, four hundred twenty million, four hundred two thousand, four hundred fifty-three".

Divisors: 1 307 33942679 10420402453