Base | Representation |
---|---|
bin | 1001110011100110011… |
… | …0001000110011101001 |
3 | 121002211222001220210100 |
4 | 2130321212020303221 |
5 | 10230011311222101 |
6 | 205221041140013 |
7 | 15112562366661 |
oct | 2347146106351 |
9 | 532758056710 |
10 | 168470023401 |
11 | 654a1a330a9 |
12 | 2879832a609 |
13 | 12b6ac9a6a4 |
14 | 82227ad1a1 |
15 | 45b037de86 |
hex | 2739988ce9 |
168470023401 has 81 divisors (see below), whose sum is σ = 258485378359. Its totient is φ = 105732177600.
The previous prime is 168470023399. The next prime is 168470023417. The reversal of 168470023401 is 104320074861.
The square root of 168470023401 is 410451.
It is a perfect power (a square), and thus also a powerful number.
168470023401 is a `hidden beast` number, since 168 + 4 + 70 + 0 + 23 + 401 = 666.
168470023401 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 only one way, i.e., 8117829801 + 160352193600 = 90099^2 + 400440^2 .
It is not a de Polignac number, because 168470023401 - 21 = 168470023399 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (168470023471) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2372817196 + ... + 2372817266.
Almost surely, 2168470023401 is an apocalyptic number.
168470023401 is the 410451-st square number.
168470023401 is the 205226-th centered octagonal number.
It is an amenable number.
168470023401 is a deficient number, since it is larger than the sum of its proper divisors (90015354958).
168470023401 is an frugal number, since it uses more digits than its factorization.
168470023401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 324 (or 162 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 36.
Multiplying 168470023401 by its sum of digits (36), we get a square (6064920842436 = 24627062).
The spelling of 168470023401 in words is "one hundred sixty-eight billion, four hundred seventy million, twenty-three thousand, four hundred one".
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