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137663311 = 10310712491
BaseRepresentation
bin10000011010010…
…01001101001111
3100121001000120011
420031021031033
5240220211221
621354334051
73261055522
oct1015111517
9317030504
10137663311
1170786535
123a12a327
132269c8a6
14143d6bb9
15c1441e1
hex834934f

137663311 has 8 divisors (see below), whose sum is σ = 140310144. Its totient is φ = 135041880.

The previous prime is 137663299. The next prime is 137663321. The reversal of 137663311 is 113366731.

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 137663311 - 223 = 129274703 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 (137663321) 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, 4776 + ... + 17266.

It is an arithmetic number, because the mean of its divisors is an integer number (17538768).

Almost surely, 2137663311 is an apocalyptic number.

137663311 is a deficient number, since it is larger than the sum of its proper divisors (2646833).

137663311 is a wasteful number, since it uses less digits than its factorization.

137663311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12701.

The product of its digits is 6804, while the sum is 31.

The square root of 137663311 is about 11733.0009375266. Note that the first 3 decimals coincide. The cubic root of 137663311 is about 516.3443195453.

The spelling of 137663311 in words is "one hundred thirty-seven million, six hundred sixty-three thousand, three hundred eleven".

Divisors: 1 103 107 11021 12491 1286573 1336537 137663311