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1013902881 = 3337967627
BaseRepresentation
bin111100011011101…
…110111000100001
32121122211121021120
4330123232320201
54034024343011
6244335242453
734061014035
oct7433567041
92548747246
101013902881
1148035a272
12243679429
13132097344
149892a1c5
155e02aa06
hex3c6eee21

1013902881 has 4 divisors (see below), whose sum is σ = 1351870512. Its totient is φ = 675935252.

The previous prime is 1013902873. The next prime is 1013902889. The reversal of 1013902881 is 1882093101.

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 an interprime number because it is at equal distance from previous prime (1013902873) and next prime (1013902889).

It is a cyclic number.

It is not a de Polignac number, because 1013902881 - 23 = 1013902873 is a prime.

It is a super-2 number, since 2×10139028812 = 2055998104200200322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1013902889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168983811 + ... + 168983816.

It is an arithmetic number, because the mean of its divisors is an integer number (337967628).

Almost surely, 21013902881 is an apocalyptic number.

It is an amenable number.

1013902881 is a deficient number, since it is larger than the sum of its proper divisors (337967631).

1013902881 is an equidigital number, since it uses as much as digits as its factorization.

1013902881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337967630.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1013902881 is about 31841.8416709838. The cubic root of 1013902881 is about 1004.6129813489.

Adding to 1013902881 its reverse (1882093101), we get a palindrome (2895995982).

The spelling of 1013902881 in words is "one billion, thirteen million, nine hundred two thousand, eight hundred eighty-one".

Divisors: 1 3 337967627 1013902881