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10120344440 = 235253008611
BaseRepresentation
bin10010110110011100…
…00011001101111000
3222010022012202122212
421123032003031320
5131211302010230
64352122034252
7505535336243
oct113316031570
928108182585
1010120344440
114323741628
121b65348988
13c539050bb
146c012c25a
153e3730895
hex25b383378

10120344440 has 16 divisors (see below), whose sum is σ = 22770775080. Its totient is φ = 4048137760.

The previous prime is 10120344401. The next prime is 10120344467. The reversal of 10120344440 is 4444302101.

It is a happy number.

10120344440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 126504266 + ... + 126504345.

Almost surely, 210120344440 is an apocalyptic number.

10120344440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120344440 is an abundant number, since it is smaller than the sum of its proper divisors (12650430640).

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

10120344440 is a wasteful number, since it uses less digits than its factorization.

10120344440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253008622 (or 253008618 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10120344440 its reverse (4444302101), we get a palindrome (14564646541).

The spelling of 10120344440 in words is "ten billion, one hundred twenty million, three hundred forty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 253008611 506017222 1012034444 1265043055 2024068888 2530086110 5060172220 10120344440