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13103430 = 2351725693
BaseRepresentation
bin110001111111…
…000101000110
3220122201112020
4301333011012
511323302210
61144504010
7216243264
oct61770506
926581466
1013103430
11743a88a
12447b006
13293a312
141a51434
15123c770
hexc7f146

13103430 has 32 divisors (see below), whose sum is σ = 33299424. Its totient is φ = 3288576.

The previous prime is 13103423. The next prime is 13103443. The reversal of 13103430 is 3430131.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 12337 + ... + 13356.

It is an arithmetic number, because the mean of its divisors is an integer number (1040607).

Almost surely, 213103430 is an apocalyptic number.

13103430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13103430 is an abundant number, since it is smaller than the sum of its proper divisors (20195994).

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

13103430 is a wasteful number, since it uses less digits than its factorization.

13103430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25720.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13103430 is about 3619.8660196201. The cubic root of 13103430 is about 235.7554082786.

Adding to 13103430 its reverse (3430131), we get a palindrome (16533561).

The spelling of 13103430 in words is "thirteen million, one hundred three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 25693 51386 77079 128465 154158 256930 385395 436781 770790 873562 1310343 2183905 2620686 4367810 6551715 13103430