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13103460 = 2232572797
BaseRepresentation
bin110001111111…
…000101100100
3220122201120100
4301333011210
511323302320
61144504100
7216243336
oct61770544
926581510
1013103460
11743a907
12447b030
13293a336
141a51456
15123c790
hexc7f164

13103460 has 36 divisors (see below), whose sum is σ = 39747708. Its totient is φ = 3494208.

The previous prime is 13103443. The next prime is 13103509. The reversal of 13103460 is 6430131.

It can be written as a sum of positive squares in 2 ways, for example, as 6260004 + 6843456 = 2502^2 + 2616^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 36219 + ... + 36578.

It is an arithmetic number, because the mean of its divisors is an integer number (1104103).

Almost surely, 213103460 is an apocalyptic number.

13103460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103460 is an abundant number, since it is smaller than the sum of its proper divisors (26644248).

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

13103460 is a wasteful number, since it uses less digits than its factorization.

13103460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72812 (or 72807 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13103460 is about 3619.8701634175. The cubic root of 13103460 is about 235.7555881973.

Adding to 13103460 its reverse (6430131), we get a palindrome (19533591).

The spelling of 13103460 in words is "thirteen million, one hundred three thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 72797 145594 218391 291188 363985 436782 655173 727970 873564 1091955 1310346 1455940 2183910 2620692 3275865 4367820 6551730 13103460