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10421245421 = 23795735413
BaseRepresentation
bin10011011010010011…
…11001010111101101
3222220021102010012122
421231021321113231
5132320314323141
64442031242325
7516151060466
oct115511712755
928807363178
1010421245421
114468580a24
12202a0793a5
13ca105a012
1470c097d6d
1540ed6b64b
hex26d2795ed

10421245421 has 8 divisors (see below), whose sum is σ = 11011994880. Its totient is φ = 9841966992.

The previous prime is 10421245399. The next prime is 10421245433. The reversal of 10421245421 is 12454212401.

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 10421245421 - 210 = 10421244397 is a prime.

It is a super-2 number, since 2×104212454212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421245441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865890 + ... + 2869523.

It is an arithmetic number, because the mean of its divisors is an integer number (1376499360).

Almost surely, 210421245421 is an apocalyptic number.

It is an amenable number.

10421245421 is a deficient number, since it is larger than the sum of its proper divisors (590749459).

10421245421 is an equidigital number, since it uses as much as digits as its factorization.

10421245421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735515.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 10421245421 its reverse (12454212401), we get a palindrome (22875457822).

The spelling of 10421245421 in words is "ten billion, four hundred twenty-one million, two hundred forty-five thousand, four hundred twenty-one".

Divisors: 1 23 79 1817 5735413 131914499 453097627 10421245421