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3870457369 = 622132
BaseRepresentation
bin1110011010110010…
…0111111000011001
3100222201221121100221
43212230213320121
530411314113434
61440021200041
7164625226162
oct34654477031
910881847327
103870457369
1117068549a9
12900260021
13498b3617c
1428a072769
15179bd72b4
hexe6b27e19

3870457369 has 3 divisors (see below), whose sum is σ = 3870519583. Its totient is φ = 3870395156.

The previous prime is 3870457351. The next prime is 3870457373. The reversal of 3870457369 is 9637540783.

It is a happy number.

The square root of 3870457369 is 62213.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 150921225 + 3719536144 = 12285^2 + 60988^2 .

It is not a de Polignac number, because 3870457369 - 223 = 3862068761 is a prime.

It is a super-2 number, since 2×38704573692 = 29960880490492804322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3870437369) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 31107 + ... + 93319.

Almost surely, 23870457369 is an apocalyptic number.

3870457369 is the 62213-rd square number.

3870457369 is the 31107-th centered octagonal number.

It is an amenable number.

3870457369 is a deficient number, since it is larger than the sum of its proper divisors (62214).

3870457369 is an frugal number, since it uses more digits than its factorization.

3870457369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124426 (or 62213 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The cubic root of 3870457369 is about 1570.0763170334.

The spelling of 3870457369 in words is "three billion, eight hundred seventy million, four hundred fifty-seven thousand, three hundred sixty-nine".

Divisors: 1 62213 3870457369