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10221123040 = 255131487649
BaseRepresentation
bin10011000010011100…
…11111010111100000
3222101022211211220121
421201032133113200
5131413101414130
64410122050024
7511201053352
oct114116372740
928338754817
1010221123040
114375615027
121b93049914
13c6b75c0cb
146cd6830d2
153ec4dad7a
hex26139f5e0

10221123040 has 48 divisors (see below), whose sum is σ = 24331784400. Its totient is φ = 4057231360.

The previous prime is 10221123037. The next prime is 10221123049. The reversal of 10221123040 is 4032112201.

10221123040 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 (10221123049) by changing a digit.

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, 222865 + ... + 264784.

It is an arithmetic number, because the mean of its divisors is an integer number (506912175).

Almost surely, 210221123040 is an apocalyptic number.

10221123040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221123040 is an abundant number, since it is smaller than the sum of its proper divisors (14110661360).

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

10221123040 is a wasteful number, since it uses less digits than its factorization.

10221123040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487795 (or 487787 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10221123040 its reverse (4032112201), we get a palindrome (14253235241).

The spelling of 10221123040 in words is "ten billion, two hundred twenty-one million, one hundred twenty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 131 160 262 524 655 1048 1310 2096 2620 4192 5240 10480 20960 487649 975298 1950596 2438245 3901192 4876490 7802384 9752980 15604768 19505960 39011920 63882019 78023840 127764038 255528076 319410095 511056152 638820190 1022112304 1277640380 2044224608 2555280760 5110561520 10221123040