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2047345487 = 11281662357
BaseRepresentation
bin111101000001000…
…0000001101001111
312021200102221000122
41322002000031033
513143110023422
6535053415155
7101510102165
oct17202001517
95250387018
102047345487
11960744a70
1249179a4bb
13268213445
14155ca1235
15beb15d42
hex7a08034f

2047345487 has 8 divisors (see below), whose sum is σ = 2241419472. Its totient is φ = 1854596800.

The previous prime is 2047345477. The next prime is 2047345543. The reversal of 2047345487 is 7845437402.

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 2047345487 - 24 = 2047345471 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 (2047345477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328088 + ... + 334269.

It is an arithmetic number, because the mean of its divisors is an integer number (280177434).

Almost surely, 22047345487 is an apocalyptic number.

2047345487 is a deficient number, since it is larger than the sum of its proper divisors (194073985).

2047345487 is a wasteful number, since it uses less digits than its factorization.

2047345487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662649.

The product of its (nonzero) digits is 752640, while the sum is 44.

The square root of 2047345487 is about 45247.6020027581. The cubic root of 2047345487 is about 1269.7855440062.

The spelling of 2047345487 in words is "two billion, forty-seven million, three hundred forty-five thousand, four hundred eighty-seven".

Divisors: 1 11 281 3091 662357 7285927 186122317 2047345487