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101022230209 = 634391592431
BaseRepresentation
bin101111000010101100…
…1001110011011000001
3100122202102011000110211
41132011121032123001
53123343142331314
6114224200554121
710204265534335
oct1360531163301
9318672130424
10101022230209
113993046285a
12176b4182941
1396ac5311a4
144c64b177c5
152963d5c9c4
hex178564e6c1

101022230209 has 4 divisors (see below), whose sum is σ = 101023886080. Its totient is φ = 101020574340.

The previous prime is 101022230143. The next prime is 101022230219. The reversal of 101022230209 is 902032220101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 902032220101 = 3132881892077.

It is a cyclic number.

It is not a de Polignac number, because 101022230209 - 227 = 100888012481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101022230209.

It is not an unprimeable number, because it can be changed into a prime (101022230219) 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, 732777 + ... + 859654.

It is an arithmetic number, because the mean of its divisors is an integer number (25255971520).

Almost surely, 2101022230209 is an apocalyptic number.

It is an amenable number.

101022230209 is a deficient number, since it is larger than the sum of its proper divisors (1655871).

101022230209 is an equidigital number, since it uses as much as digits as its factorization.

101022230209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655870.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 101022230209 in words is "one hundred one billion, twenty-two million, two hundred thirty thousand, two hundred nine".

Divisors: 1 63439 1592431 101022230209