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1938325181941 = 19735171387667
BaseRepresentation
bin11100001101001101001…
…011110001010111110101
320212022011012210110202101
4130031031023301113311
5223224142221310231
64042242043342101
7260016335125621
oct34151513612765
96768135713671
101938325181941
11688048040175
122737b1221931
13110a24b368a5
1469b5b7cc181
15356486ec661
hex1c34d2f15f5

1938325181941 has 8 divisors (see below), whose sum is σ = 2040371520480. Its totient is φ = 1836281765808.

The previous prime is 1938325181929. The next prime is 1938325181977. The reversal of 1938325181941 is 1491815238391.

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-1938325181941 is a prime.

It is a super-3 number, since 3×19383251819413 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938325187941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702990 + ... + 2090656.

It is an arithmetic number, because the mean of its divisors is an integer number (255046440060).

Almost surely, 21938325181941 is an apocalyptic number.

It is an amenable number.

1938325181941 is a deficient number, since it is larger than the sum of its proper divisors (102046338539).

1938325181941 is a wasteful number, since it uses less digits than its factorization.

1938325181941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461203.

The product of its digits is 1866240, while the sum is 55.

The spelling of 1938325181941 in words is "one trillion, nine hundred thirty-eight billion, three hundred twenty-five million, one hundred eighty-one thousand, nine hundred forty-one".

Divisors: 1 19 73517 1387667 1396823 26365673 102017114839 1938325181941