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164212310 = 25671371789
BaseRepresentation
bin10011100100110…
…10111001010110
3102102222211221102
421302122321112
5314014243220
624143350102
74032532043
oct1162327126
9372884842
10164212310
118476a159
1246bb2332
1328036b62
1417b481ca
15e63a775
hex9c9ae56

164212310 has 32 divisors (see below), whose sum is σ = 302352480. Its totient is φ = 64196352.

The previous prime is 164212303. The next prime is 164212319. The reversal of 164212310 is 13212461.

It is a super-2 number, since 2×1642123102 = 53931365511072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164212319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90896 + ... + 92684.

It is an arithmetic number, because the mean of its divisors is an integer number (9448515).

Almost surely, 2164212310 is an apocalyptic number.

164212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164212310 is a deficient number, since it is larger than the sum of its proper divisors (138140170).

164212310 is a wasteful number, since it uses less digits than its factorization.

164212310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 164212310 is about 12814.5351066670. The cubic root of 164212310 is about 547.6064692895.

Adding to 164212310 its reverse (13212461), we get a palindrome (177424771).

The spelling of 164212310 in words is "one hundred sixty-four million, two hundred twelve thousand, three hundred ten".

Divisors: 1 2 5 10 67 134 137 274 335 670 685 1370 1789 3578 8945 9179 17890 18358 45895 91790 119863 239726 245093 490186 599315 1198630 1225465 2450930 16421231 32842462 82106155 164212310