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13212130 = 251321213
BaseRepresentation
bin110010011001…
…100111100010
3220212020122011
4302121213202
511340242010
61151103134
7220205221
oct62314742
926766564
1013212130
117504518
124511aaa
132977939
141a7ccb8
15125ea8a
hexc999e2

13212130 has 8 divisors (see below), whose sum is σ = 23781852. Its totient is φ = 5284848.

The previous prime is 13212109. The next prime is 13212131. The reversal of 13212130 is 3121231.

13212130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13111641 + 100489 = 3621^2 + 317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13212130.

It is not an unprimeable number, because it can be changed into a prime (13212131) 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, 660597 + ... + 660616.

Almost surely, 213212130 is an apocalyptic number.

13212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13212130 is a deficient number, since it is larger than the sum of its proper divisors (10569722).

13212130 is a wasteful number, since it uses less digits than its factorization.

13212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321220.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13212130 is about 3634.8493778972. The cubic root of 13212130 is about 236.4055198774.

Adding to 13212130 its reverse (3121231), we get a palindrome (16333361).

The spelling of 13212130 in words is "thirteen million, two hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 1321213 2642426 6606065 13212130