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201398200 = 23521006991
BaseRepresentation
bin11000000000100…
…01011110111000
3112000222002101121
430000101132320
5403024220300
631552355024
74663566523
oct1400213670
9460862347
10201398200
11a37584a3
1257545a74
1332956843
141ca67bba
1512a3381a
hexc0117b8

201398200 has 24 divisors (see below), whose sum is σ = 468251280. Its totient is φ = 80559200.

The previous prime is 201398179. The next prime is 201398203. The reversal of 201398200 is 2893102.

201398200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2013982002 = 81122469926480000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201398203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503296 + ... + 503695.

It is an arithmetic number, because the mean of its divisors is an integer number (19510470).

Almost surely, 2201398200 is an apocalyptic number.

201398200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201398200 is an abundant number, since it is smaller than the sum of its proper divisors (266853080).

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

201398200 is a wasteful number, since it uses less digits than its factorization.

201398200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007007 (or 1006998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 201398200 is about 14191.4833615095. The cubic root of 201398200 is about 586.1631713717.

The spelling of 201398200 in words is "two hundred one million, three hundred ninety-eight thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1006991 2013982 4027964 5034955 8055928 10069910 20139820 25174775 40279640 50349550 100699100 201398200