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10123223040 = 21332573923
BaseRepresentation
bin10010110110110010…
…00010000000000000
3222010111122000100200
421123121002000000
5131213021114130
64352303445200
7505601655540
oct113331020000
928114560320
1010123223040
114325328337
121b662b6800
13c543a2408
146c067b320
153e3aed760
hex25b642000

10123223040 has 336 divisors, whose sum is σ = 40115020608. Its totient is φ = 2313289728.

The previous prime is 10123223023. The next prime is 10123223063. The reversal of 10123223040 is 4032232101.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2578519 + ... + 2582441.

Almost surely, 210123223040 is an apocalyptic number.

10123223040 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 10123223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20057510304).

10123223040 is an abundant number, since it is smaller than the sum of its proper divisors (29991797568).

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

10123223040 is an equidigital number, since it uses as much as digits as its factorization.

10123223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 10123223040 its reverse (4032232101), we get a palindrome (14155455141).

The spelling of 10123223040 in words is "ten billion, one hundred twenty-three million, two hundred twenty-three thousand, forty".