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164633131 = 13101125387
BaseRepresentation
bin10011101000000…
…01101000101011
3102110210020012101
421310001220223
5314121230011
624200354231
74036233655
oct1164015053
9373706171
10164633131
1184a27343
1247175977
1328153570
1417c176d5
15e6c02c1
hex9d01a2b

164633131 has 8 divisors (see below), whose sum is σ = 179054064. Its totient is φ = 150463200.

The previous prime is 164633113. The next prime is 164633141. The reversal of 164633131 is 131336461.

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

It is a cyclic number.

It is not a de Polignac number, because 164633131 - 25 = 164633099 is a prime.

It is a super-2 number, since 2×1646331312 = 54208135645726322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164633131.

It is not an unprimeable number, because it can be changed into a prime (164633141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61381 + ... + 64006.

It is an arithmetic number, because the mean of its divisors is an integer number (22381758).

Almost surely, 2164633131 is an apocalyptic number.

164633131 is a deficient number, since it is larger than the sum of its proper divisors (14420933).

164633131 is a wasteful number, since it uses less digits than its factorization.

164633131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125501.

The product of its digits is 3888, while the sum is 28.

The square root of 164633131 is about 12830.9442754616. The cubic root of 164633131 is about 548.0738474281.

Adding to 164633131 its reverse (131336461), we get a palindrome (295969592).

The spelling of 164633131 in words is "one hundred sixty-four million, six hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 13 101 1313 125387 1630031 12664087 164633131