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122220232 = 2315277529
BaseRepresentation
bin1110100100011…
…10111011001000
322111222102122021
413102032323020
5222242021412
620043334224
73012566131
oct722167310
9274872567
10122220232
1162a98962
1234b21374
131c423684
1412336c88
15aae3607
hex748eec8

122220232 has 8 divisors (see below), whose sum is σ = 229162950. Its totient is φ = 61110112.

The previous prime is 122220227. The next prime is 122220247. The reversal of 122220232 is 232022221.

It can be written as a sum of positive squares in only one way, i.e., 122014116 + 206116 = 11046^2 + 454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1222202322 = 29875570220267648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7638757 + ... + 7638772.

Almost surely, 2122220232 is an apocalyptic number.

It is an amenable number.

122220232 is a deficient number, since it is larger than the sum of its proper divisors (106942718).

122220232 is a wasteful number, since it uses less digits than its factorization.

122220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15277535 (or 15277531 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 122220232 is about 11055.3259562982. The cubic root of 122220232 is about 496.2658239513.

Adding to 122220232 its reverse (232022221), we get a palindrome (354242453).

The spelling of 122220232 in words is "one hundred twenty-two million, two hundred twenty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 15277529 30555058 61110116 122220232