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13971030 = 235465701
BaseRepresentation
bin110101010010…
…111001010110
3222021210122120
4311102321112
512034033110
61215240410
7226515603
oct65227126
928253576
1013971030
117982707
124819106
132b821a8
141bd96aa
15135e870
hexd52e56

13971030 has 16 divisors (see below), whose sum is σ = 33530544. Its totient is φ = 3725600.

The previous prime is 13971017. The next prime is 13971047. The reversal of 13971030 is 3017931.

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, 232821 + ... + 232880.

It is an arithmetic number, because the mean of its divisors is an integer number (2095659).

Almost surely, 213971030 is an apocalyptic number.

13971030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13971030 is an abundant number, since it is smaller than the sum of its proper divisors (19559514).

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

13971030 is a wasteful number, since it uses less digits than its factorization.

13971030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465711.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 13971030 is about 3737.7841029145. The cubic root of 13971030 is about 240.8478691859.

Adding to 13971030 its reverse (3017931), we get a palindrome (16988961).

The spelling of 13971030 in words is "thirteen million, nine hundred seventy-one thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 465701 931402 1397103 2328505 2794206 4657010 6985515 13971030