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3890127145 = 5923984211
BaseRepresentation
bin1110011111011110…
…1010000100101001
3101001002221221020011
43213313222010221
530431333032040
61442002531521
7165254351362
oct34767520451
911032857204
103890127145
11171696a113
12906966ba1
1349cc321a8
1428c912b69
1517b7c03ea
hexe7dea129

3890127145 has 8 divisors (see below), whose sum is σ = 4668713280. Its totient is φ = 3111727920.

The previous prime is 3890127121. The next prime is 3890127179. The reversal of 3890127145 is 5417210983.

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

It is not a de Polignac number, because 3890127145 - 229 = 3353256233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3890127098 and 3890127107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4090 + ... + 88300.

It is an arithmetic number, because the mean of its divisors is an integer number (583589160).

Almost surely, 23890127145 is an apocalyptic number.

It is an amenable number.

3890127145 is a deficient number, since it is larger than the sum of its proper divisors (778586135).

3890127145 is an equidigital number, since it uses as much as digits as its factorization.

3890127145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93455.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 3890127145 is about 62370.8837920387. The cubic root of 3890127145 is about 1572.7315484910.

The spelling of 3890127145 in words is "three billion, eight hundred ninety million, one hundred twenty-seven thousand, one hundred forty-five".

Divisors: 1 5 9239 46195 84211 421055 778025429 3890127145