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2042222999 = 19107485421
BaseRepresentation
bin111100110111001…
…1101100110010111
312021022210200021212
41321232131212113
513140302113444
6534351532035
7101415415625
oct17156354627
95238720255
102042222999
11958866403
1248bb2a01b
1326713b99b
1415532a515
15be45319e
hex79b9d997

2042222999 has 4 divisors (see below), whose sum is σ = 2149708440. Its totient is φ = 1934737560.

The previous prime is 2042222989. The next prime is 2042223011. The reversal of 2042222999 is 9992222402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9992222402 = 24996111201.

It is a cyclic number.

It is not a de Polignac number, because 2042222999 - 216 = 2042157463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042222939) 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, 53742692 + ... + 53742729.

It is an arithmetic number, because the mean of its divisors is an integer number (537427110).

Almost surely, 22042222999 is an apocalyptic number.

2042222999 is a deficient number, since it is larger than the sum of its proper divisors (107485441).

2042222999 is a wasteful number, since it uses less digits than its factorization.

2042222999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107485440.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 2042222999 is about 45190.9614746135. The cubic root of 2042222999 is about 1268.7256522979.

The spelling of 2042222999 in words is "two billion, forty-two million, two hundred twenty-two thousand, nine hundred ninety-nine".

Divisors: 1 19 107485421 2042222999