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10213808740 = 225510690437
BaseRepresentation
bin10011000001100101…
…00101101001100100
3222100211002020120121
421200302211221210
5131404213334430
64405301211324
7511051641022
oct114062455144
928324066517
1010213808740
114371479753
121b90700b44
13c6a09ab15
146cc6db712
153eba43a7a
hex260ca5a64

10213808740 has 12 divisors (see below), whose sum is σ = 21448998396. Its totient is φ = 4085523488.

The previous prime is 10213808723. The next prime is 10213808749. The reversal of 10213808740 is 4780831201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8006312484 + 2207496256 = 89478^2 + 46984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10213808696 and 10213808705.

It is not an unprimeable number, because it can be changed into a prime (10213808749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255345199 + ... + 255345238.

It is an arithmetic number, because the mean of its divisors is an integer number (1787416533).

Almost surely, 210213808740 is an apocalyptic number.

10213808740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10213808740 is an abundant number, since it is smaller than the sum of its proper divisors (11235189656).

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

10213808740 is a wasteful number, since it uses less digits than its factorization.

10213808740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510690446 (or 510690444 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 10213808740 in words is "ten billion, two hundred thirteen million, eight hundred eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 510690437 1021380874 2042761748 2553452185 5106904370 10213808740