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11231030044 = 2213245987833
BaseRepresentation
bin10100111010110101…
…11110101100011100
31001222201011102212201
422131122332230130
5141000120430134
65054235541244
7545213115553
oct123532765434
931881142781
1011231030044
114843695113
1222152ba824
13109ca57710
1478784cd9a
1545aec7914
hex29d6beb1c

11231030044 has 24 divisors (see below), whose sum is σ = 21175020720. Its totient is φ = 5181385344.

The previous prime is 11231030039. The next prime is 11231030047. The reversal of 11231030044 is 44003013211.

It is a super-2 number, since 2×112310300442 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231030047) 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, 83952 + ... + 171784.

It is an arithmetic number, because the mean of its divisors is an integer number (882292530).

Almost surely, 211231030044 is an apocalyptic number.

It is an amenable number.

11231030044 is a deficient number, since it is larger than the sum of its proper divisors (9943990676).

11231030044 is a wasteful number, since it uses less digits than its factorization.

11231030044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90309 (or 90307 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11231030044 its reverse (44003013211), we get a palindrome (55234043255).

The spelling of 11231030044 in words is "eleven billion, two hundred thirty-one million, thirty thousand, forty-four".

Divisors: 1 2 4 13 26 52 2459 4918 9836 31967 63934 87833 127868 175666 351332 1141829 2283658 4567316 215981347 431962694 863925388 2807757511 5615515022 11231030044