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13850033681 = 118431149341
BaseRepresentation
bin11001110011000011…
…01011111000010001
31022202020021121110102
430321201223320101
5211331102034211
610210154142145
71000134225641
oct147141537021
938666247412
1013850033681
115967a8a330
122826421955
1313c9522403
149555da521
15560dada3b
hex33986be11

13850033681 has 8 divisors (see below), whose sum is σ = 15111020928. Its totient is φ = 12589362000.

The previous prime is 13850033657. The next prime is 13850033683. The reversal of 13850033681 is 18633005831.

13850033681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13850033681 - 214 = 13850017297 is a prime.

It is a super-2 number, since 2×138500336812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13850033683) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18071 + ... + 167411.

It is an arithmetic number, because the mean of its divisors is an integer number (1888877616).

Almost surely, 213850033681 is an apocalyptic number.

13850033681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13850033681 is a deficient number, since it is larger than the sum of its proper divisors (1260987247).

13850033681 is a wasteful number, since it uses less digits than its factorization.

13850033681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157783.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 13850033681 in words is "thirteen billion, eight hundred fifty million, thirty-three thousand, six hundred eighty-one".

Divisors: 1 11 8431 92741 149341 1642751 1259093971 13850033681