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12313303040 = 21151202471
BaseRepresentation
bin10110111011110111…
…00001100000000000
31011210010122121022202
423131323201200000
5200204201144130
65353500452332
7614064230453
oct133573414000
934703577282
1012313303040
1152495a1905
12247784a0a8
13121303c73c
1484b49549a
154c100b145
hex2ddee1800

12313303040 has 48 divisors (see below), whose sum is σ = 29544737040. Its totient is φ = 4925317120.

The previous prime is 12313303033. The next prime is 12313303049. The reversal of 12313303040 is 4030331321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313303049) 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, 590996 + ... + 611475.

It is an arithmetic number, because the mean of its divisors is an integer number (615515355).

Almost surely, 212313303040 is an apocalyptic number.

12313303040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313303040 is an abundant number, since it is smaller than the sum of its proper divisors (17231434000).

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

12313303040 is an equidigital number, since it uses as much as digits as its factorization.

12313303040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202498 (or 1202478 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12313303040 its reverse (4030331321), we get a palindrome (16343634361).

The spelling of 12313303040 in words is "twelve billion, three hundred thirteen million, three hundred three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2048 2560 5120 10240 1202471 2404942 4809884 6012355 9619768 12024710 19239536 24049420 38479072 48098840 76958144 96197680 153916288 192395360 307832576 384790720 615665152 769581440 1231330304 1539162880 2462660608 3078325760 6156651520 12313303040