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13290216 = 233553759
BaseRepresentation
bin110010101100…
…101011101000
3221000012202020
4302230223220
511400241331
61152504440
7220651662
oct62545350
927005666
1013290216
117558155
12454b120
1329a4344
141a9d532
151277c96
hexcacae8

13290216 has 16 divisors (see below), whose sum is σ = 33225600. Its totient is φ = 4430064.

The previous prime is 13290197. The next prime is 13290217. The reversal of 13290216 is 61209231.

13290216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 553759 = 13290216 / (1 + 3 + 2 + 9 + 0 + 2 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (13290217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276856 + ... + 276903.

It is an arithmetic number, because the mean of its divisors is an integer number (2076600).

Almost surely, 213290216 is an apocalyptic number.

It is an amenable number.

13290216 is an abundant number, since it is smaller than the sum of its proper divisors (19935384).

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

13290216 is a wasteful number, since it uses less digits than its factorization.

13290216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553768 (or 553764 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 13290216 is about 3645.5748517895. The cubic root of 13290216 is about 236.8703380197.

Adding to 13290216 its reverse (61209231), we get a palindrome (74499447).

The spelling of 13290216 in words is "thirteen million, two hundred ninety thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 553759 1107518 1661277 2215036 3322554 4430072 6645108 13290216