Search a number
-
+
232101212 = 227972881
BaseRepresentation
bin11011101010110…
…01010101011100
3121011201222000012
431311121111130
5433404214322
635010422352
75515553630
oct1565312534
9534658005
10232101212
1110a019092
12658919b8
13391167c5
1422b7adc0
151559aae2
hexdd5955c

232101212 has 36 divisors (see below), whose sum is σ = 469569744. Its totient is φ = 98334720.

The previous prime is 232101203. The next prime is 232101217. The reversal of 232101212 is 212101232.

It is a happy number.

232101212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

232101212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×2321012122 = 107741945223737888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232101217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263012 + ... + 263892.

It is an arithmetic number, because the mean of its divisors is an integer number (13043604).

Almost surely, 2232101212 is an apocalyptic number.

It is an amenable number.

232101212 is an abundant number, since it is smaller than the sum of its proper divisors (237468532).

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

232101212 is an equidigital number, since it uses as much as digits as its factorization.

232101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 232101212 is about 15234.8682961160. The cubic root of 232101212 is about 614.5527071264.

Adding to 232101212 its reverse (212101232), we get a palindrome (444202444).

The spelling of 232101212 in words is "two hundred thirty-two million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 97 194 388 679 881 1358 1762 2716 3524 6167 9409 12334 18818 24668 37636 65863 85457 131726 170914 263452 341828 598199 1196398 2392796 8289329 16578658 33157316 58025303 116050606 232101212