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164454470 = 2516445447
BaseRepresentation
bin10011100110101…
…10000001000110
3102110110011010022
421303112001012
5314100020340
624152455142
74034561045
oct1163260106
9373404108
10164454470
1184915094
12470aa4b2
13280c014b
1417bac55c
15e6873b5
hex9cd6046

164454470 has 8 divisors (see below), whose sum is σ = 296018064. Its totient is φ = 65781784.

The previous prime is 164454469. The next prime is 164454491. The reversal of 164454470 is 74454461.

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

It is a self number, because there is not a number n which added to its sum of digits gives 164454470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8222714 + ... + 8222733.

It is an arithmetic number, because the mean of its divisors is an integer number (37002258).

Almost surely, 2164454470 is an apocalyptic number.

164454470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164454470 is a deficient number, since it is larger than the sum of its proper divisors (131563594).

164454470 is a wasteful number, since it uses less digits than its factorization.

164454470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16445454.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 164454470 is about 12823.9802713510. The cubic root of 164454470 is about 547.8755178384.

Subtracting from 164454470 its reverse (74454461), we obtain a palindrome (90000009).

The spelling of 164454470 in words is "one hundred sixty-four million, four hundred fifty-four thousand, four hundred seventy".

Divisors: 1 2 5 10 16445447 32890894 82227235 164454470