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10488390894 = 233194229461
BaseRepresentation
bin10011100010010100…
…00010010011101110
31000001221202110111000
421301022002103232
5132440012002034
64452430341130
7520624565052
oct116112022356
930057673430
1010488390894
1144a2472353
12204865a7a6
13cb1c39477
14716d75c62
15415bd1599
hex2712824ee

10488390894 has 16 divisors (see below), whose sum is σ = 23307535440. Its totient is φ = 3496130280.

The previous prime is 10488390893. The next prime is 10488390949. The reversal of 10488390894 is 49809388401.

It is a super-2 number, since 2×104883908942 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 194229461 = 10488390894 / (1 + 0 + 4 + 8 + 8 + 3 + 9 + 0 + 8 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 10488390894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10488390893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97114677 + ... + 97114784.

It is an arithmetic number, because the mean of its divisors is an integer number (1456720965).

Almost surely, 210488390894 is an apocalyptic number.

10488390894 is an abundant number, since it is smaller than the sum of its proper divisors (12819144546).

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

10488390894 is a wasteful number, since it uses less digits than its factorization.

10488390894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194229472 (or 194229466 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 10488390894 in words is "ten billion, four hundred eighty-eight million, three hundred ninety thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 194229461 388458922 582688383 1165376766 1748065149 3496130298 5244195447 10488390894