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401413231 = 1786327361
BaseRepresentation
bin10111111011010…
…001010001101111
31000222022220102201
4113323101101233
51310230210411
6103455402331
712642645652
oct2773212157
91028286381
10401413231
1119665077a
12b25233a7
136521792b
143b451899
15253923c1
hex17ed146f

401413231 has 8 divisors (see below), whose sum is σ = 425533824. Its totient is φ = 377349120.

The previous prime is 401413219. The next prime is 401413237. The reversal of 401413231 is 132314104.

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 401413231 - 29 = 401412719 is a prime.

It is a super-2 number, since 2×4014132312 = 322265164043718722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401413199 and 401413208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401413237) 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, 991 + ... + 28351.

It is an arithmetic number, because the mean of its divisors is an integer number (53191728).

Almost surely, 2401413231 is an apocalyptic number.

401413231 is a deficient number, since it is larger than the sum of its proper divisors (24120593).

401413231 is a wasteful number, since it uses less digits than its factorization.

401413231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28241.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 401413231 is about 20035.2996234147. The cubic root of 401413231 is about 737.6730110618.

Adding to 401413231 its reverse (132314104), we get a palindrome (533727335).

The spelling of 401413231 in words is "four hundred one million, four hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 17 863 14671 27361 465137 23612543 401413231