Search a number
-
+
3256063121 = 19871638683
BaseRepresentation
bin1100001000010011…
…1001010010010001
322101220212010220102
43002010321102101
523132023004441
61255032422145
7143455036253
oct30204712221
98356763812
103256063121
111420a65463
1276a547955
133cb76a88c
1422c61dcd3
15140cc469b
hexc2139491

3256063121 has 4 divisors (see below), whose sum is σ = 3257703792. Its totient is φ = 3254422452.

The previous prime is 3256063087. The next prime is 3256063123. The reversal of 3256063121 is 1213606523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3256063121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3256063123) 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, 817355 + ... + 821328.

It is an arithmetic number, because the mean of its divisors is an integer number (814425948).

Almost surely, 23256063121 is an apocalyptic number.

It is an amenable number.

3256063121 is a deficient number, since it is larger than the sum of its proper divisors (1640671).

3256063121 is a wasteful number, since it uses less digits than its factorization.

3256063121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640670.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3256063121 is about 57061.9235655441. The cubic root of 3256063121 is about 1482.1685887617.

Adding to 3256063121 its reverse (1213606523), we get a palindrome (4469669644).

The spelling of 3256063121 in words is "three billion, two hundred fifty-six million, sixty-three thousand, one hundred twenty-one".

Divisors: 1 1987 1638683 3256063121