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3790490069 = 8893426233
BaseRepresentation
bin1110000111101110…
…0100100111010101
3100210011110211212002
43201323210213111
530230331140234
61424043205045
7162634430312
oct34173444725
910704424762
103790490069
1116756a6323
12899516785
134853b7942
1427d5b7d09
15172b8d27e
hexe1ee49d5

3790490069 has 4 divisors (see below), whose sum is σ = 3790925196. Its totient is φ = 3790054944.

The previous prime is 3790490023. The next prime is 3790490129. The reversal of 3790490069 is 9600940973.

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

It can be written as a sum of positive squares in 2 ways, for example, as 248692900 + 3541797169 = 15770^2 + 59513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3790490069 is a prime.

It is a super-2 number, since 2×37904900692 = 28735629926375249522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3790490009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204224 + ... + 222009.

It is an arithmetic number, because the mean of its divisors is an integer number (947731299).

Almost surely, 23790490069 is an apocalyptic number.

It is an amenable number.

3790490069 is a deficient number, since it is larger than the sum of its proper divisors (435127).

3790490069 is an equidigital number, since it uses as much as digits as its factorization.

3790490069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435126.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 3790490069 is about 61566.9559828972. The cubic root of 3790490069 is about 1559.1878948892.

The spelling of 3790490069 in words is "three billion, seven hundred ninety million, four hundred ninety thousand, sixty-nine".

Divisors: 1 8893 426233 3790490069