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2042004643 = 71571858057
BaseRepresentation
bin111100110110110…
…1000010010100011
312021022101120202121
41321231220102203
513140223122033
6534343125111
7101413516210
oct17155502243
95238346677
102042004643
11958727348
1248ba43797
13267093493
141552b0b07
15be40d62d
hex79b684a3

2042004643 has 8 divisors (see below), whose sum is σ = 2348585312. Its totient is φ = 1739140416.

The previous prime is 2042004641. The next prime is 2042004647. The reversal of 2042004643 is 3464002402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2042004643 - 21 = 2042004641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042004641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927930 + ... + 930127.

It is an arithmetic number, because the mean of its divisors is an integer number (293573164).

Almost surely, 22042004643 is an apocalyptic number.

2042004643 is a deficient number, since it is larger than the sum of its proper divisors (306580669).

2042004643 is a wasteful number, since it uses less digits than its factorization.

2042004643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858221.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2042004643 is about 45188.5454844477. The cubic root of 2042004643 is about 1268.6804329899.

The spelling of 2042004643 in words is "two billion, forty-two million, four thousand, six hundred forty-three".

Divisors: 1 7 157 1099 1858057 13006399 291714949 2042004643