Search a number
-
+
13122041044 = 227266949189
BaseRepresentation
bin11000011100010001…
…00111010011010100
31020212111102202022011
430032020213103110
5203333220303134
610010030514004
7643114336300
oct141610472324
936774382264
1013122041044
115624060722
122662665904
131311761938
148c6a56d00
1551c00c264
hex30e2274d4

13122041044 has 18 divisors (see below), whose sum is σ = 26712726810. Its totient is φ = 5623731792.

The previous prime is 13122040991. The next prime is 13122041077. The reversal of 13122041044 is 44014022131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12053404944 + 1068636100 = 109788^2 + 32690^2 .

It is a super-2 number, since 2×131220410442 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33474399 + ... + 33474790.

Almost surely, 213122041044 is an apocalyptic number.

13122041044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13122041044 is an abundant number, since it is smaller than the sum of its proper divisors (13590685766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13122041044 is a wasteful number, since it uses less digits than its factorization.

13122041044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66949207 (or 66949198 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 13122041044 its reverse (44014022131), we get a palindrome (57136063175).

The spelling of 13122041044 in words is "thirteen billion, one hundred twenty-two million, forty-one thousand, forty-four".

Divisors: 1 2 4 7 14 28 49 98 196 66949189 133898378 267796756 468644323 937288646 1874577292 3280510261 6561020522 13122041044