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164454630 = 2355481821
BaseRepresentation
bin10011100110101…
…10000011100110
3102110110011100020
421303112003212
5314100022010
624152500010
74034561364
oct1163260346
9373404306
10164454630
118491521a
12470aa606
13280c0242
1417bac634
15e687470
hex9cd60e6

164454630 has 16 divisors (see below), whose sum is σ = 394691184. Its totient is φ = 43854560.

The previous prime is 164454611. The next prime is 164454637. The reversal of 164454630 is 36454461.

164454630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164454591 and 164454600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164454637) 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, 2740881 + ... + 2740940.

It is an arithmetic number, because the mean of its divisors is an integer number (24668199).

Almost surely, 2164454630 is an apocalyptic number.

164454630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164454630 is an abundant number, since it is smaller than the sum of its proper divisors (230236554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164454630 is a wasteful number, since it uses less digits than its factorization.

164454630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481831.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 164454630 is about 12823.9865096623. The cubic root of 164454630 is about 547.8756955169.

The spelling of 164454630 in words is "one hundred sixty-four million, four hundred fifty-four thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 5481821 10963642 16445463 27409105 32890926 54818210 82227315 164454630