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2047506989 = 11238092913
BaseRepresentation
bin111101000001010…
…0111101000101101
312021200202010120012
41322002213220231
513143130210424
6535101103005
7101511344063
oct17202475055
95250663505
102047506989
11960845340
12491857a65
1326826bac8
14155d04033
15beb48b0e
hex7a0a7a2d

2047506989 has 8 divisors (see below), whose sum is σ = 2330759232. Its totient is φ = 1780440640.

The previous prime is 2047506973. The next prime is 2047506991. The reversal of 2047506989 is 9896057402.

It is a happy number.

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

It is not a de Polignac number, because 2047506989 - 24 = 2047506973 is a prime.

It is a super-2 number, since 2×20475069892 = 8384569740007692242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047506949) 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, 4046204 + ... + 4046709.

It is an arithmetic number, because the mean of its divisors is an integer number (291344904).

Almost surely, 22047506989 is an apocalyptic number.

It is an amenable number.

2047506989 is a deficient number, since it is larger than the sum of its proper divisors (283252243).

2047506989 is a wasteful number, since it uses less digits than its factorization.

2047506989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8092947.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 2047506989 is about 45249.3866146272. The cubic root of 2047506989 is about 1269.8189315502.

The spelling of 2047506989 in words is "two billion, forty-seven million, five hundred six thousand, nine hundred eighty-nine".

Divisors: 1 11 23 253 8092913 89022043 186136999 2047506989