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13402101240 = 2335511163769
BaseRepresentation
bin11000111101101001…
…11101010111111000
31021121000102021200000
430132310331113320
5204421414214430
610053513313000
7653054660313
oct143664752770
937530367600
1013402101240
115758156030
122720405760
13135779a828
14911d1997a
155368cce60
hex31ed3d5f8

13402101240 has 384 divisors, whose sum is σ = 49643193600. Its totient is φ = 3224862720.

The previous prime is 13402101233. The next prime is 13402101253. The reversal of 13402101240 is 4210120431.

13402101240 is a `hidden beast` number, since 13 + 402 + 10 + 1 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17427576 + ... + 17428344.

It is an arithmetic number, because the mean of its divisors is an integer number (129279150).

Almost surely, 213402101240 is an apocalyptic number.

13402101240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13402101240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24821596800).

13402101240 is an abundant number, since it is smaller than the sum of its proper divisors (36241092360).

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

13402101240 is a wasteful number, since it uses less digits than its factorization.

13402101240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13402101240 its reverse (4210120431), we get a palindrome (17612221671).

The spelling of 13402101240 in words is "thirteen billion, four hundred two million, one hundred one thousand, two hundred forty".