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2491041379 = 19139943219
BaseRepresentation
bin1001010001111010…
…0100011001100011
320102121100000100211
42110132210121203
520100201311004
61051103354551
7115505334211
oct22436443143
96377300324
102491041379
111069145292
125962b2a57
133091138a8
14198b9bcb1
15e8a5b504
hex947a4663

2491041379 has 8 divisors (see below), whose sum is σ = 2641016000. Its totient is φ = 2342953512.

The previous prime is 2491041353. The next prime is 2491041403. The reversal of 2491041379 is 9731401942.

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 2491041379 - 27 = 2491041251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491041349) 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, 468969 + ... + 474250.

It is an arithmetic number, because the mean of its divisors is an integer number (330127000).

Almost surely, 22491041379 is an apocalyptic number.

2491041379 is a deficient number, since it is larger than the sum of its proper divisors (149974621).

2491041379 is a wasteful number, since it uses less digits than its factorization.

2491041379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943377.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 2491041379 is about 49910.3333889887. Note that the first 4 decimals coincide. The cubic root of 2491041379 is about 1355.5857054048.

The spelling of 2491041379 in words is "two billion, four hundred ninety-one million, forty-one thousand, three hundred seventy-nine".

Divisors: 1 19 139 2641 943219 17921161 131107441 2491041379