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201262520 = 2355031563
BaseRepresentation
bin10111111111100…
…00010110111000
3112000201012021102
423333300112320
5403010400040
631545430532
74662463124
oct1377602670
9460635242
10201262520
11a3675568
125749b448
1332909b64
141ca30584
1512a08515
hexbff05b8

201262520 has 16 divisors (see below), whose sum is σ = 452840760. Its totient is φ = 80504992.

The previous prime is 201262519. The next prime is 201262531. The reversal of 201262520 is 25262102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 201262492 and 201262501.

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 3 ways as a sum of consecutive naturals, for example, 2515742 + ... + 2515821.

Almost surely, 2201262520 is an apocalyptic number.

201262520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201262520 is an abundant number, since it is smaller than the sum of its proper divisors (251578240).

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

201262520 is a wasteful number, since it uses less digits than its factorization.

201262520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031574 (or 5031570 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201262520 is about 14186.7022242662. The cubic root of 201262520 is about 586.0315110003.

The spelling of 201262520 in words is "two hundred one million, two hundred sixty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5031563 10063126 20126252 25157815 40252504 50315630 100631260 201262520