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201290480 = 24523109397
BaseRepresentation
bin10111111111101…
…11001011110000
3112000202121121222
423333313023300
5403012243410
631550204212
74662640466
oct1377671360
9460677558
10201290480
11a3694576
12574b3668
13329197c1
141ca3a836
1512a11955
hexbff72f0

201290480 has 40 divisors (see below), whose sum is σ = 488352672. Its totient is φ = 77014784.

The previous prime is 201290461. The next prime is 201290483. The reversal of 201290480 is 84092102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201290483) 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 7 ways as a sum of consecutive naturals, for example, 52859 + ... + 56538.

Almost surely, 2201290480 is an apocalyptic number.

201290480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201290480 is an abundant number, since it is smaller than the sum of its proper divisors (287062192).

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

201290480 is a wasteful number, since it uses less digits than its factorization.

201290480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109433 (or 109427 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 201290480 is about 14187.6876199048. The cubic root of 201290480 is about 586.0586475023.

The spelling of 201290480 in words is "two hundred one million, two hundred ninety thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 109397 218794 437588 546985 875176 1093970 1750352 2187940 2516131 4375880 5032262 8751760 10064524 12580655 20129048 25161310 40258096 50322620 100645240 201290480