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10222144400 = 24521319157659
BaseRepresentation
bin10011000010100100…
…11000101110010000
3222101101202201221202
421201102120232100
5131413332110100
64410200010332
7511212536156
oct114122305620
928341681852
1010222144400
114376152426
121b934609a8
13c6ba28c70
146cd86b3d6
153ec63d7d5
hex261498b90

10222144400 has 240 divisors, whose sum is σ = 28059662400. Its totient is φ = 3547514880.

The previous prime is 10222144399. The next prime is 10222144423. The reversal of 10222144400 is 444122201.

It is a super-2 number, since 2×102221444002 (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15511271 + ... + 15511929.

It is an arithmetic number, because the mean of its divisors is an integer number (116915260).

Almost surely, 210222144400 is an apocalyptic number.

10222144400 is a gapful number since it is divisible by the number (10) 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 10222144400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14029831200).

10222144400 is an abundant number, since it is smaller than the sum of its proper divisors (17837518000).

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

10222144400 is a wasteful number, since it uses less digits than its factorization.

10222144400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 10222144400 its reverse (444122201), we get a palindrome (10666266601).

The spelling of 10222144400 in words is "ten billion, two hundred twenty-two million, one hundred forty-four thousand, four hundred".