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2074902139 = 17811150497
BaseRepresentation
bin111101110101100…
…0111111001111011
312100121021221122101
41323223013321323
513222133332024
6541520204231
7102263243242
oct17353077173
95317257571
102074902139
11975256762
1249aa69677
13270b4125b
141597d5959
15c225ac44
hex7bac7e7b

2074902139 has 8 divisors (see below), whose sum is σ = 2199678768. Its totient is φ = 1950428160.

The previous prime is 2074902131. The next prime is 2074902149. The reversal of 2074902139 is 9312094702.

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 2074902139 - 23 = 2074902131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2074902098 and 2074902107.

It is not an unprimeable number, because it can be changed into a prime (2074902131) 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, 61462 + ... + 89035.

It is an arithmetic number, because the mean of its divisors is an integer number (274959846).

Almost surely, 22074902139 is an apocalyptic number.

2074902139 is a deficient number, since it is larger than the sum of its proper divisors (124776629).

2074902139 is a wasteful number, since it uses less digits than its factorization.

2074902139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151325.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2074902139 is about 45551.0937190316. The cubic root of 2074902139 is about 1275.4571502308.

The spelling of 2074902139 in words is "two billion, seventy-four million, nine hundred two thousand, one hundred thirty-nine".

Divisors: 1 17 811 13787 150497 2558449 122053067 2074902139