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19147332707 = 193372990369
BaseRepresentation
bin10001110101010001…
…010001110001100011
31211102102002021121122
4101311101101301203
5303203204121312
612443545442455
71245326433266
oct216521216143
954372067548
1019147332707
118136196508
1238644a042b
131a61b44589
14cd8d6acdd
15770e8db72
hex475451c63

19147332707 has 8 divisors (see below), whose sum is σ = 20214901200. Its totient is φ = 18085745664.

The previous prime is 19147332691. The next prime is 19147332719. The reversal of 19147332707 is 70723374191.

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 19147332707 - 24 = 19147332691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19147335707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488782 + ... + 1501587.

It is an arithmetic number, because the mean of its divisors is an integer number (2526862650).

Almost surely, 219147332707 is an apocalyptic number.

19147332707 is a deficient number, since it is larger than the sum of its proper divisors (1067568493).

19147332707 is a wasteful number, since it uses less digits than its factorization.

19147332707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990725.

The product of its (nonzero) digits is 222264, while the sum is 44.

The spelling of 19147332707 in words is "nineteen billion, one hundred forty-seven million, three hundred thirty-two thousand, seven hundred seven".

Divisors: 1 19 337 6403 2990369 56817011 1007754353 19147332707