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201046240 = 2556120599
BaseRepresentation
bin10111111101110…
…11100011100000
3112000022012121001
423332323203200
5402431434430
631541041344
74660602433
oct1376734340
9460265531
10201046240
11a353801a
12573b6254
1332862595
141c9b581a
15129b43ca
hexbfbb8e0

201046240 has 48 divisors (see below), whose sum is σ = 482781600. Its totient is φ = 79096320.

The previous prime is 201046229. The next prime is 201046273. The reversal of 201046240 is 42640102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540 + ... + 20059.

It is an arithmetic number, because the mean of its divisors is an integer number (10057950).

Almost surely, 2201046240 is an apocalyptic number.

201046240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201046240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241390800).

201046240 is an abundant number, since it is smaller than the sum of its proper divisors (281735360).

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

201046240 is a wasteful number, since it uses less digits than its factorization.

201046240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20675 (or 20667 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 201046240 is about 14179.0775440435. The cubic root of 201046240 is about 585.8215160747.

Adding to 201046240 its reverse (42640102), we get a palindrome (243686342).

The spelling of 201046240 in words is "two hundred one million, forty-six thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 61 80 122 160 244 305 488 610 976 1220 1952 2440 4880 9760 20599 41198 82396 102995 164792 205990 329584 411980 659168 823960 1256539 1647920 2513078 3295840 5026156 6282695 10052312 12565390 20104624 25130780 40209248 50261560 100523120 201046240