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1291813030741 = 43119331550567
BaseRepresentation
bin10010110011000110000…
…011101000101101010101
311120111101200010022201111
4102303012003220231111
5132131113113440431
62425241204255021
7162221221405342
oct22630603505525
94514350108644
101291813030741
11458944861aa2
1218a4416a1471
1394a81c1022c
144674a1317c9
152390a2e67b1
hex12cc60e8b55

1291813030741 has 8 divisors (see below), whose sum is σ = 1295480957184. Its totient is φ = 1288148210160.

The previous prime is 1291813030733. The next prime is 1291813030769. The reversal of 1291813030741 is 1470303181921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1291813030741 - 23 = 1291813030733 is a prime.

It is a super-2 number, since 2×12918130307412 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1291813030694 and 1291813030703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291813030841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57840 + ... + 1608406.

It is an arithmetic number, because the mean of its divisors is an integer number (161935119648).

Almost surely, 21291813030741 is an apocalyptic number.

It is an amenable number.

1291813030741 is a deficient number, since it is larger than the sum of its proper divisors (3667926443).

1291813030741 is a wasteful number, since it uses less digits than its factorization.

1291813030741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552931.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 1291813030741 in words is "one trillion, two hundred ninety-one billion, eight hundred thirteen million, thirty thousand, seven hundred forty-one".

Divisors: 1 431 1933 833123 1550567 668294377 2997246011 1291813030741