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1687230714 = 231364333641
BaseRepresentation
bin110010010010001…
…0001100011111010
311100120211012102110
41210210101203322
511423412340324
6435231113150
756545136661
oct14444214372
94316735373
101687230714
11796441454
123b10727b6
1320b728390
1412011ddd8
159d1d0329
hex649118fa

1687230714 has 32 divisors (see below), whose sum is σ = 3639795264. Its totient is φ = 518325120.

The previous prime is 1687230703. The next prime is 1687230719. The reversal of 1687230714 is 4170327861.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1687230719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33334 + ... + 66974.

It is an arithmetic number, because the mean of its divisors is an integer number (113743602).

Almost surely, 21687230714 is an apocalyptic number.

1687230714 is an abundant number, since it is smaller than the sum of its proper divisors (1952564550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1687230714 is a wasteful number, since it uses less digits than its factorization.

1687230714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34302.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 1687230714 is about 41075.9140373041. The cubic root of 1687230714 is about 1190.4874574770.

It can be divided in two parts, 16872 and 30714, that added together give a triangular number (47586 = T308).

The spelling of 1687230714 in words is "one billion, six hundred eighty-seven million, two hundred thirty thousand, seven hundred fourteen".

Divisors: 1 2 3 6 13 26 39 78 643 1286 1929 3858 8359 16718 25077 33641 50154 67282 100923 201846 437333 874666 1311999 2623998 21631163 43262326 64893489 129786978 281205119 562410238 843615357 1687230714