Search a number
-
+
31101102043 = 114909575957
BaseRepresentation
bin11100111101110001…
…010010011111011011
32222021111012200102021
4130331301102133123
51002143340231133
622142044315311
72150500001614
oct347561223733
988244180367
1031101102043
111220a841320
12603b842b37
132c1854057b
141710792c0b
15c2062b52d
hex73dc527db

31101102043 has 8 divisors (see below), whose sum is σ = 33935445360. Its totient is φ = 28267920480.

The previous prime is 31101102029. The next prime is 31101102079. The reversal of 31101102043 is 34020110113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31101102043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31101109043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233980 + ... + 341977.

It is an arithmetic number, because the mean of its divisors is an integer number (4241930670).

Almost surely, 231101102043 is an apocalyptic number.

31101102043 is a deficient number, since it is larger than the sum of its proper divisors (2834343317).

31101102043 is a wasteful number, since it uses less digits than its factorization.

31101102043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580877.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31101102043 its reverse (34020110113), we get a palindrome (65121212156).

The spelling of 31101102043 in words is "thirty-one billion, one hundred one million, one hundred two thousand, forty-three".

Divisors: 1 11 4909 53999 575957 6335527 2827372913 31101102043