Search a number
-
+
122212430 = 2512221243
BaseRepresentation
bin1110100100011…
…01000001001110
322111222000221022
413102031001032
5222241244210
620043234142
73012534314
oct722150116
9274860838
10122212430
1162a9300a
1234b18952
131c41cc62
14123340b4
15aae1155
hex748d04e

122212430 has 8 divisors (see below), whose sum is σ = 219982392. Its totient is φ = 48884968.

The previous prime is 122212421. The next prime is 122212451. The reversal of 122212430 is 34212221.

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

It is a junction number, because it is equal to n+sod(n) for n = 122212399 and 122212408.

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, 6110612 + ... + 6110631.

It is an arithmetic number, because the mean of its divisors is an integer number (27497799).

Almost surely, 2122212430 is an apocalyptic number.

122212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122212430 is a deficient number, since it is larger than the sum of its proper divisors (97769962).

122212430 is a wasteful number, since it uses less digits than its factorization.

122212430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12221250.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 122212430 is about 11054.9730890672. The cubic root of 122212430 is about 496.2552639202.

Adding to 122212430 its reverse (34212221), we get a palindrome (156424651).

The spelling of 122212430 in words is "one hundred twenty-two million, two hundred twelve thousand, four hundred thirty".

Divisors: 1 2 5 10 12221243 24442486 61106215 122212430