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13401349240 = 235335033731
BaseRepresentation
bin11000111101100100…
…00101110001111000
31021120222000002010011
430132302011301320
5204421221133430
610053445231304
7653045406016
oct143662056170
937528002104
1013401349240
115757792044
122720102534
131357596466
14911ba18b6
155367d022a
hex31ec85c78

13401349240 has 16 divisors (see below), whose sum is σ = 30153035880. Its totient is φ = 5360539680.

The previous prime is 13401349229. The next prime is 13401349289. The reversal of 13401349240 is 4294310431.

13401349240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×134013492402 (a number of 21 digits) contains 22 as substring.

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, 167516826 + ... + 167516905.

Almost surely, 213401349240 is an apocalyptic number.

13401349240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13401349240 is an abundant number, since it is smaller than the sum of its proper divisors (16751686640).

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

13401349240 is a wasteful number, since it uses less digits than its factorization.

13401349240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335033742 (or 335033738 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 13401349240 its reverse (4294310431), we get a palindrome (17695659671).

The spelling of 13401349240 in words is "thirteen billion, four hundred one million, three hundred forty-nine thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 335033731 670067462 1340134924 1675168655 2680269848 3350337310 6700674620 13401349240