Search a number
-
+
1331214383879 = 19279432507387
BaseRepresentation
bin10011010111110010100…
…011110111101100000111
311201021002121201110002222
4103113302203313230013
5133302311340241004
62455315040122555
7165114506364122
oct23276243675407
94637077643088
101331214383879
114736238a6866
12195bb900645b
13986c0c4ba83
1448606dc93b9
152496447b7be
hex135f28f7b07

1331214383879 has 8 divisors (see below), whose sum is σ = 1401329005440. Its totient is φ = 1261104833016.

The previous prime is 1331214383833. The next prime is 1331214383897. The reversal of 1331214383879 is 9783834121331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1331214383879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1331214383879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331214383809) 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, 722777 + ... + 1784610.

It is an arithmetic number, because the mean of its divisors is an integer number (175166125680).

Almost surely, 21331214383879 is an apocalyptic number.

1331214383879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1331214383879 is a deficient number, since it is larger than the sum of its proper divisors (70114621561).

1331214383879 is a wasteful number, since it uses less digits than its factorization.

1331214383879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535349.

The product of its digits is 2612736, while the sum is 53.

The spelling of 1331214383879 in words is "one trillion, three hundred thirty-one billion, two hundred fourteen million, three hundred eighty-three thousand, eight hundred seventy-nine".

Divisors: 1 19 27943 530917 2507387 47640353 70063914941 1331214383879