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13903901980 = 225695195099
BaseRepresentation
bin11001111001011110…
…01011010100011100
31022212222122101212121
430330233023110130
5211433344330410
610215400512324
71001360134243
oct147457132434
938788571777
1013903901980
115995432391
12284047b6a4
131407733447
1495c81d95a
1556599e9da
hex33cbcb51c

13903901980 has 12 divisors (see below), whose sum is σ = 29198194200. Its totient is φ = 5561560784.

The previous prime is 13903901933. The next prime is 13903901983. The reversal of 13903901980 is 8910930931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13903901983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347597530 + ... + 347597569.

It is an arithmetic number, because the mean of its divisors is an integer number (2433182850).

Almost surely, 213903901980 is an apocalyptic number.

13903901980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13903901980 is an abundant number, since it is smaller than the sum of its proper divisors (15294292220).

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

13903901980 is a wasteful number, since it uses less digits than its factorization.

13903901980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695195108 (or 695195106 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 13903901980 in words is "thirteen billion, nine hundred three million, nine hundred one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 695195099 1390390198 2780780396 3475975495 6951950990 13903901980