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424401201 = 36721092
BaseRepresentation
bin11001010010111…
…101100100110001
31002120120211000000
4121102331210301
51332121314301
6110040220213
713342231200
oct3122754461
91076524000
10424401201
111a86219a4
12ba16a669
1369c06093
1440517237
15273d3786
hex194bd931

424401201 has 63 divisors (see below), whose sum is σ = 747051291. Its totient is φ = 240290064.

The previous prime is 424401199. The next prime is 424401227. The reversal of 424401201 is 102104424.

The square root of 424401201 is 20601.

It is a perfect power (a square), and thus also a powerful number.

424401201 is a `hidden beast` number, since 424 + 40 + 1 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 295805601 + 128595600 = 17199^2 + 11340^2 .

It is a tau number, because it is divible by the number of its divisors (63).

It is not a de Polignac number, because 424401201 - 21 = 424401199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (424401281) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 3893535 + ... + 3893643.

It is an arithmetic number, because the mean of its divisors is an integer number (11857957).

Almost surely, 2424401201 is an apocalyptic number.

424401201 is the 20601-st square number.

424401201 is the 10301-st centered octagonal number.

It is an amenable number.

424401201 is a deficient number, since it is larger than the sum of its proper divisors (322650090).

424401201 is an frugal number, since it uses more digits than its factorization.

424401201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The cubic root of 424401201 is about 751.4940298568.

Multiplying 424401201 by its product of nonzero digits (256), we get a square (108646707456 = 3296162).

Adding to 424401201 its reverse (102104424), we get a palindrome (526505625).

The spelling of 424401201 in words is "four hundred twenty-four million, four hundred one thousand, two hundred one".

Divisors: 1 3 7 9 21 27 49 63 81 109 147 189 243 327 441 567 729 763 981 1323 1701 2289 2943 3969 5103 5341 6867 8829 11881 11907 16023 20601 26487 35643 35721 48069 61803 79461 83167 106929 144207 185409 249501 320787 432621 556227 582169 748503 962361 1297863 1746507 2245509 2887083 3893589 5239521 6736527 8661249 15718563 20209581 47155689 60628743 141467067 424401201