Search a number
-
+
164472212 = 22172731949
BaseRepresentation
bin10011100110110…
…10010110010100
3102110111001110102
421303122112110
5314101102322
624153113232
74034663552
oct1163322624
9373431412
10164472212
1184927453
12470b8818
13280c8248
1417bb4bd2
15e68c792
hex9cda594

164472212 has 36 divisors (see below), whose sum is σ = 310100700. Its totient is φ = 76299264.

The previous prime is 164472211. The next prime is 164472221. The reversal of 164472212 is 212274461.

164472212 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 6 ways, for example, as 36917776 + 127554436 = 6076^2 + 11294^2 .

It is a super-2 number, since 2×1644722122 = 54102217040345888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164472211) 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, 83414 + ... + 85362.

Almost surely, 2164472212 is an apocalyptic number.

It is an amenable number.

164472212 is a deficient number, since it is larger than the sum of its proper divisors (145628488).

164472212 is a wasteful number, since it uses less digits than its factorization.

164472212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2041 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 164472212 is about 12824.6720036031. The cubic root of 164472212 is about 547.8952194573.

The spelling of 164472212 in words is "one hundred sixty-four million, four hundred seventy-two thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 73 146 289 292 578 1156 1241 1949 2482 3898 4964 7796 21097 33133 42194 66266 84388 132532 142277 284554 563261 569108 1126522 2253044 2418709 4837418 9674836 41118053 82236106 164472212