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2047157611 = 19710391663
BaseRepresentation
bin111101000000101…
…0010010101101011
312021200002101022021
41322001102111223
513143033020421
6535045405311
7101505360352
oct17201222553
95250071267
102047157611
119606268a4
12491709837
13268178a85
14155c52999
15beaca341
hex7a05256b

2047157611 has 4 divisors (see below), whose sum is σ = 2057549472. Its totient is φ = 2036765752.

The previous prime is 2047157599. The next prime is 2047157653. The reversal of 2047157611 is 1167517402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1167517402 = 2583758701.

It is a cyclic number.

It is not a de Polignac number, because 2047157611 - 217 = 2047026539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2047157681) 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, 5195635 + ... + 5196028.

It is an arithmetic number, because the mean of its divisors is an integer number (514387368).

Almost surely, 22047157611 is an apocalyptic number.

2047157611 is a deficient number, since it is larger than the sum of its proper divisors (10391861).

2047157611 is a wasteful number, since it uses less digits than its factorization.

2047157611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10391860.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 2047157611 is about 45245.5258672059. The cubic root of 2047157611 is about 1269.7467019172.

The spelling of 2047157611 in words is "two billion, forty-seven million, one hundred fifty-seven thousand, six hundred eleven".

Divisors: 1 197 10391663 2047157611