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10202012219 = 72208204331
BaseRepresentation
bin10011000000001011…
…00101101000111011
3222022222212220210102
421200011211220323
5131343203342334
64404200310015
7510546446600
oct114005455073
928288786712
1010202012219
114365851863
121b8877230b
13c677ca629
146cad0a6a7
153ea9b367e
hex260165a3b

10202012219 has 6 divisors (see below), whose sum is σ = 11867646924. Its totient is φ = 8744581860.

The previous prime is 10202012203. The next prime is 10202012243. The reversal of 10202012219 is 91221020201.

It is a happy number.

It is not a de Polignac number, because 10202012219 - 24 = 10202012203 is a prime.

It is a super-2 number, since 2×102020122192 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10202012219.

It is not an unprimeable number, because it can be changed into a prime (10202012419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104102117 + ... + 104102214.

It is an arithmetic number, because the mean of its divisors is an integer number (1977941154).

Almost surely, 210202012219 is an apocalyptic number.

10202012219 is a deficient number, since it is larger than the sum of its proper divisors (1665634705).

10202012219 is an equidigital number, since it uses as much as digits as its factorization.

10202012219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208204345 (or 208204338 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 10202012219 in words is "ten billion, two hundred two million, twelve thousand, two hundred nineteen".

Divisors: 1 7 49 208204331 1457430317 10202012219