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2979421403 = 72318505723
BaseRepresentation
bin1011000110010110…
…0101110011011011
321200122022021210212
42301211211303123
522100212441103
61211351201335
7133555443530
oct26145456333
97618267725
102979421403
111299895442
126b197624b
1338635a95a
142039aad87
1512687b7d8
hexb1965cdb

2979421403 has 8 divisors (see below), whose sum is σ = 3553099008. Its totient is φ = 2442755304.

The previous prime is 2979421391. The next prime is 2979421427. The reversal of 2979421403 is 3041249792.

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 2979421403 - 28 = 2979421147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2979421703) 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, 9252701 + ... + 9253022.

It is an arithmetic number, because the mean of its divisors is an integer number (444137376).

Almost surely, 22979421403 is an apocalyptic number.

2979421403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2979421403 is a deficient number, since it is larger than the sum of its proper divisors (573677605).

2979421403 is a wasteful number, since it uses less digits than its factorization.

2979421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18505753.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 2979421403 is about 54584.0764600813. The cubic root of 2979421403 is about 1438.9442819833.

The spelling of 2979421403 in words is "two billion, nine hundred seventy-nine million, four hundred twenty-one thousand, four hundred three".

Divisors: 1 7 23 161 18505723 129540061 425631629 2979421403