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10201012223 = 79129126737
BaseRepresentation
bin10011000000000011…
…10001011111111111
3222022221000010001112
421200001301133333
5131342424342343
64404123032235
7510535113263
oct114001613777
928287003045
1010201012223
114365229516
121b8836b67b
13c6753a40c
146cab2a0a3
153ea867218
hex2600717ff

10201012223 has 4 divisors (see below), whose sum is σ = 10330139040. Its totient is φ = 10071885408.

The previous prime is 10201012183. The next prime is 10201012229. The reversal of 10201012223 is 32221010201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10201012223 - 28 = 10201011967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201012198 and 10201012207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201012229) 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, 64563290 + ... + 64563447.

It is an arithmetic number, because the mean of its divisors is an integer number (2582534760).

Almost surely, 210201012223 is an apocalyptic number.

10201012223 is a deficient number, since it is larger than the sum of its proper divisors (129126817).

10201012223 is an equidigital number, since it uses as much as digits as its factorization.

10201012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129126816.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10201012223 its reverse (32221010201), we get a palindrome (42422022424).

The spelling of 10201012223 in words is "ten billion, two hundred one million, twelve thousand, two hundred twenty-three".

Divisors: 1 79 129126737 10201012223