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14351987 = 132163521
BaseRepresentation
bin110110101111…
…111001110011
31000000011020002
4312233321303
512133230422
61231340215
7232663346
oct66577163
930004202
1014351987
118112951
12498166b
132c86700
141c9845d
1513d7692
hexdafe73

14351987 has 12 divisors (see below), whose sum is σ = 15666264. Its totient is φ = 13141440.

The previous prime is 14351971. The next prime is 14351993. The reversal of 14351987 is 78915341.

It is not a de Polignac number, because 14351987 - 24 = 14351971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14351987.

It is not an unprimeable number, because it can be changed into a prime (14351087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27287 + ... + 27807.

It is an arithmetic number, because the mean of its divisors is an integer number (1305522).

Almost surely, 214351987 is an apocalyptic number.

14351987 is a deficient number, since it is larger than the sum of its proper divisors (1314277).

14351987 is a wasteful number, since it uses less digits than its factorization.

14351987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 697 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 14351987 is about 3788.4016418537. The cubic root of 14351987 is about 243.0173854463.

The spelling of 14351987 in words is "fourteen million, three hundred fifty-one thousand, nine hundred eighty-seven".

Divisors: 1 13 163 169 521 2119 6773 27547 84923 88049 1103999 14351987