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201031203040 = 2551256445019
BaseRepresentation
bin1011101100111001100…
…1001011100011100000
3201012220012200020010121
42323032121023203200
511243202441444130
6232204044210024
720344512013603
oct2731631134340
9635805606117
10201031203040
1178290967318
1232b64b39914
1315c59b62aa5
149a3103233a
155368c6ad7a
hex2ece64b8e0

201031203040 has 24 divisors (see below), whose sum is σ = 474936217560. Its totient is φ = 80412481152.

The previous prime is 201031203031. The next prime is 201031203041. The reversal of 201031203040 is 40302130102.

It is a happy number.

201031203040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201031203041) 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 3 ways as a sum of consecutive naturals, for example, 628222350 + ... + 628222669.

It is an arithmetic number, because the mean of its divisors is an integer number (19789009065).

Almost surely, 2201031203040 is an apocalyptic number.

201031203040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201031203040 is an abundant number, since it is smaller than the sum of its proper divisors (273905014520).

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

201031203040 is a wasteful number, since it uses less digits than its factorization.

201031203040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256445034 (or 1256445026 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201031203040 its reverse (40302130102), we get a palindrome (241333333142).

The spelling of 201031203040 in words is "two hundred one billion, thirty-one million, two hundred three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1256445019 2512890038 5025780076 6282225095 10051560152 12564450190 20103120304 25128900380 40206240608 50257800760 100515601520 201031203040