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29131943223241 = 229312704728837
BaseRepresentation
bin1101001111110110011110…
…01000001001111111001001
310211010222122012201112210001
412213323033020021333021
512304244204431120431
6141543010245523001
76064466465465335
oct647731710117711
9124128565645701
1029131943223241
119311873532711
123325b70a13461
131334190803791
14729dca5287c5
15357bc6cc0e61
hex1a7ecf209fc9

29131943223241 has 4 divisors (see below), whose sum is σ = 29144647954372. Its totient is φ = 29119238492112.

The previous prime is 29131943223203. The next prime is 29131943223269. The reversal of 29131943223241 is 14232234913192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6781315977216 + 22350627246025 = 2604096^2 + 4727645^2 .

It is a cyclic number.

It is not a de Polignac number, because 29131943223241 - 215 = 29131943190473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29131943223191 and 29131943223200.

It is not an unprimeable number, because it can be changed into a prime (29131943623241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6352362126 + ... + 6352366711.

It is an arithmetic number, because the mean of its divisors is an integer number (7286161988593).

Almost surely, 229131943223241 is an apocalyptic number.

It is an amenable number.

29131943223241 is a deficient number, since it is larger than the sum of its proper divisors (12704731131).

29131943223241 is a wasteful number, since it uses less digits than its factorization.

29131943223241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704731130.

The product of its digits is 559872, while the sum is 46.

The spelling of 29131943223241 in words is "twenty-nine trillion, one hundred thirty-one billion, nine hundred forty-three million, two hundred twenty-three thousand, two hundred forty-one".

Divisors: 1 2293 12704728837 29131943223241