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10320203423 = 98310498681
BaseRepresentation
bin10011001110010000…
…11100111010011111
3222122020021122122102
421213020130322133
5132113433002143
64424021435315
7513513165425
oct114710347237
928566248572
1010320203423
114416538642
12200026bb3b
13c8614015a
146dc8b5115
1540605d0b8
hex26721ce9f

10320203423 has 4 divisors (see below), whose sum is σ = 10330703088. Its totient is φ = 10309703760.

The previous prime is 10320203417. The next prime is 10320203471. The reversal of 10320203423 is 32430202301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32430202301 = 74632886043.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10320203423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10320203395 and 10320203404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320203323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5248358 + ... + 5250323.

It is an arithmetic number, because the mean of its divisors is an integer number (2582675772).

Almost surely, 210320203423 is an apocalyptic number.

10320203423 is a deficient number, since it is larger than the sum of its proper divisors (10499665).

10320203423 is an equidigital number, since it uses as much as digits as its factorization.

10320203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10499664.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 10320203423 its reverse (32430202301), we get a palindrome (42750405724).

The spelling of 10320203423 in words is "ten billion, three hundred twenty million, two hundred three thousand, four hundred twenty-three".

Divisors: 1 983 10498681 10320203423