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981890982014 = 2490945491007
BaseRepresentation
bin11100100100111010100…
…00110110000001111110
310110212102200002222220012
432102131100312001332
5112041403042411024
62031024031223222
7130640113432145
oct16223520660176
93425380088805
10981890982014
11349465952728
1213a369377b12
13717905b7b97
143574935c75c
151a81ba2650e
hexe49d43607e

981890982014 has 4 divisors (see below), whose sum is σ = 1472836473024. Its totient is φ = 490945491006.

The previous prime is 981890982011. The next prime is 981890982019. The reversal of 981890982014 is 410289098189.

981890982014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981890982011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245472745502 + ... + 245472745505.

It is an arithmetic number, because the mean of its divisors is an integer number (368209118256).

Almost surely, 2981890982014 is an apocalyptic number.

981890982014 is a deficient number, since it is larger than the sum of its proper divisors (490945491010).

981890982014 is a wasteful number, since it uses less digits than its factorization.

981890982014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490945491009.

The product of its (nonzero) digits is 2985984, while the sum is 59.

The spelling of 981890982014 in words is "nine hundred eighty-one billion, eight hundred ninety million, nine hundred eighty-two thousand, fourteen".

Divisors: 1 2 490945491007 981890982014