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13487000 = 235313487
BaseRepresentation
bin110011011100…
…101110011000
3221101012200112
4303130232120
511423041000
61201023452
7222431462
oct63345630
927335615
1013487000
117681a8a
124624b88
132a42a97
141b11132
1512b6235
hexcdcb98

13487000 has 32 divisors (see below), whose sum is σ = 31561920. Its totient is φ = 5394400.

The previous prime is 13486999. The next prime is 13487021. The reversal of 13487000 is 78431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 5744 + ... + 7743.

It is an arithmetic number, because the mean of its divisors is an integer number (986310).

Almost surely, 213487000 is an apocalyptic number.

13487000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13487000 is an abundant number, since it is smaller than the sum of its proper divisors (18074920).

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

13487000 is a wasteful number, since it uses less digits than its factorization.

13487000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13508 (or 13494 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 13487000 is about 3672.4651121556. The cubic root of 13487000 is about 238.0337028279.

The spelling of 13487000 in words is "thirteen million, four hundred eighty-seven thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 13487 26974 53948 67435 107896 134870 269740 337175 539480 674350 1348700 1685875 2697400 3371750 6743500 13487000