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401254193 = 7923321799
BaseRepresentation
bin10111111010101…
…010011100110001
31000222000211021102
4113322222130301
51310210113233
6103452134145
712641414204
oct2772523461
91028024242
10401254193
1119655223a
12b2467355
1365190422
143b40d93b
15253601e8
hex17eaa731

401254193 has 8 divisors (see below), whose sum is σ = 408096000. Its totient is φ = 394456608.

The previous prime is 401254171. The next prime is 401254207. The reversal of 401254193 is 391452104.

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 401254193 - 26 = 401254129 is a prime.

It is a super-2 number, since 2×4012541932 = 322009854800162498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401254123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7508 + ... + 29306.

It is an arithmetic number, because the mean of its divisors is an integer number (51012000).

Almost surely, 2401254193 is an apocalyptic number.

It is an amenable number.

401254193 is a deficient number, since it is larger than the sum of its proper divisors (6841807).

401254193 is a wasteful number, since it uses less digits than its factorization.

401254193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22111.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 401254193 is about 20031.3302853305. The cubic root of 401254193 is about 737.5755773548.

Subtracting from 401254193 its reverse (391452104), we obtain a palindrome (9802089).

The spelling of 401254193 in words is "four hundred one million, two hundred fifty-four thousand, one hundred ninety-three".

Divisors: 1 79 233 18407 21799 1722121 5079167 401254193