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238214251824481 = 154341912
BaseRepresentation
bin110110001010011110010011…
…110111000100010101100001
31011020110001121210022121020101
4312022132103313010111201
5222210400241431340411
62202350041100542401
7101114261141340052
oct6612362367042541
91136401553277211
10238214251824481
11699a2107a16479
1222873626b51a01
13a2bc67a15128a
1442b78ba43a729
151c8177552a8c1
hexd8a793dc4561

238214251824481 has 3 divisors (see below), whose sum is σ = 238214267258673. Its totient is φ = 238214236390290.

The previous prime is 238214251824421. The next prime is 238214251824541. The reversal of 238214251824481 is 184428152412832.

It is a happy number.

The square root of 238214251824481 is 15434191.

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

238214251824481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (238214251824421) and next prime (238214251824541).

It is not a de Polignac number, because 238214251824481 - 215 = 238214251791713 is a prime.

It is a super-2 number, since 2×2382142518244812 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238214251824421) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7717096 + ... + 23151286.

It is an arithmetic number, because the mean of its divisors is an integer number (79404755752891).

Almost surely, 2238214251824481 is an apocalyptic number.

238214251824481 is the 15434191-st square number.

238214251824481 is the 7717096-th centered octagonal number.

It is an amenable number.

238214251824481 is a deficient number, since it is larger than the sum of its proper divisors (15434192).

238214251824481 is an frugal number, since it uses more digits than its factorization.

238214251824481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30868382 (or 15434191 counting only the distinct ones).

The product of its digits is 7864320, while the sum is 55.

The spelling of 238214251824481 in words is "two hundred thirty-eight trillion, two hundred fourteen billion, two hundred fifty-one million, eight hundred twenty-four thousand, four hundred eighty-one".

Divisors: 1 15434191 238214251824481