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1348174109881 = 19223226572
BaseRepresentation
bin10011100111100101011…
…100000101110010111001
311202212212120102210111001
4103213211130011302321
5134042030033004011
62511202002005001
7166255003566334
oct23474534056271
94685776383431
101348174109881
1147a837157a45
12199350946761
139a1947b09c1
14493755c361b
152510834a7c1
hex139e5705cb9

1348174109881 has 27 divisors (see below), whose sum is σ = 1487978648751. Its totient is φ = 1221226579584.

The previous prime is 1348174109869. The next prime is 1348174109897. The reversal of 1348174109881 is 1889014718431.

It is a happy number.

The square root of 1348174109881 is 1161109.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 878653143225 + 469520966656 = 937365^2 + 685216^2 .

It is not a de Polignac number, because 1348174109881 - 213 = 1348174101689 is a prime.

It is a super-2 number, since 2×13481741098812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1348174109081) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 507403305 + ... + 507405961.

Almost surely, 21348174109881 is an apocalyptic number.

1348174109881 is the 1161109-th square number.

1348174109881 is the 580555-th centered octagonal number.

It is an amenable number.

1348174109881 is a deficient number, since it is larger than the sum of its proper divisors (139804538870).

1348174109881 is an frugal number, since it uses more digits than its factorization.

1348174109881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5398 (or 2699 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 55.

The spelling of 1348174109881 in words is "one trillion, three hundred forty-eight billion, one hundred seventy-four million, one hundred nine thousand, eight hundred eighty-one".

Divisors: 1 19 23 361 437 529 2657 8303 10051 50483 61111 190969 959177 1161109 1405553 7059649 22061071 26705507 134133331 162371927 507404633 2548533289 3085066613 3734554321 58616265647 70956532099 1348174109881