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201532430 = 251119211457
BaseRepresentation
bin11000000001100…
…10010000001110
3112001012220112002
430000302100032
5403043014210
631555312302
74664666051
oct1400622016
9461186462
10201532430
11a383a330
12575ab692
13329a2978
141caa0a98
1512a5d4a5
hexc03240e

201532430 has 64 divisors (see below), whose sum is σ = 419454720. Its totient is φ = 68947200.

The previous prime is 201532393. The next prime is 201532469. The reversal of 201532430 is 34235102.

It is a happy number.

201532430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440762 + ... + 441218.

It is an arithmetic number, because the mean of its divisors is an integer number (6553980).

Almost surely, 2201532430 is an apocalyptic number.

201532430 is an abundant number, since it is smaller than the sum of its proper divisors (217922290).

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

201532430 is a wasteful number, since it uses less digits than its factorization.

201532430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 201532430 is about 14196.2118186508. The cubic root of 201532430 is about 586.2933665257.

Adding to 201532430 its reverse (34235102), we get a palindrome (235767532).

The spelling of 201532430 in words is "two hundred one million, five hundred thirty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 211 418 422 457 914 1045 1055 2090 2110 2285 2321 4009 4570 4642 5027 8018 8683 10054 11605 17366 20045 23210 25135 40090 43415 44099 50270 86830 88198 95513 96427 191026 192854 220495 440990 477565 482135 955130 964270 1060697 1832113 2121394 3664226 5303485 9160565 10606970 18321130 20153243 40306486 100766215 201532430