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12415121044 = 223783885953
BaseRepresentation
bin10111000111111111…
…11011011010010100
31012001020020111100221
423203333323122110
5200411232333134
65411535044124
7616441534114
oct134377733224
935036214327
1012415121044
1152a1015217
1224a5970644
13122b16b891
1485abdb044
154c9e1e5b4
hex2e3ffb694

12415121044 has 12 divisors (see below), whose sum is σ = 22313663764. Its totient is φ = 6039788544.

The previous prime is 12415121021. The next prime is 12415121053. The reversal of 12415121044 is 44012151421.

It can be written as a sum of positive squares in 2 ways, for example, as 5652032400 + 6763088644 = 75180^2 + 82238^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41942829 + ... + 41943124.

Almost surely, 212415121044 is an apocalyptic number.

It is an amenable number.

12415121044 is a deficient number, since it is larger than the sum of its proper divisors (9898542720).

12415121044 is a wasteful number, since it uses less digits than its factorization.

12415121044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83885994 (or 83885992 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 12415121044 its reverse (44012151421), we get a palindrome (56427272465).

The spelling of 12415121044 in words is "twelve billion, four hundred fifteen million, one hundred twenty-one thousand, forty-four".

Divisors: 1 2 4 37 74 148 83885953 167771906 335543812 3103780261 6207560522 12415121044