Search a number
-
+
130421212 = 22171917959
BaseRepresentation
bin1111100011000…
…01000111011100
3100002102002021021
413301201013130
5231341434322
620535213524
73142363525
oct761410734
9302362237
10130421212
116768a429
12378172a4
132103541c
141346d84c
15b6b34c7
hex7c611dc

130421212 has 12 divisors (see below), whose sum is σ = 241662960. Its totient is φ = 61374656.

The previous prime is 130421209. The next prime is 130421227. The reversal of 130421212 is 212124031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958912 + ... + 959047.

It is an arithmetic number, because the mean of its divisors is an integer number (20138580).

Almost surely, 2130421212 is an apocalyptic number.

It is an amenable number.

130421212 is a deficient number, since it is larger than the sum of its proper divisors (111241748).

130421212 is a wasteful number, since it uses less digits than its factorization.

130421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917980 (or 1917978 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 130421212 is about 11420.2106810689. The cubic root of 130421212 is about 507.1262337284.

Adding to 130421212 its reverse (212124031), we get a palindrome (342545243).

The spelling of 130421212 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 1917959 3835918 7671836 32605303 65210606 130421212