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401131214 = 211210971511
BaseRepresentation
bin10111111010001…
…100011011001110
31000221210120120122
4113322030123032
51310142144324
6103445344542
712640362521
oct2772143316
91027716518
10401131214
11196478900
12b2408152
1365149463
143b3babb8
1525338a5e
hex17e8c6ce

401131214 has 24 divisors (see below), whose sum is σ = 662410224. Its totient is φ = 182045600.

The previous prime is 401131187. The next prime is 401131217. The reversal of 401131214 is 412131104.

It is a happy number.

It is a super-2 number, since 2×4011312142 = 321812501690227592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401131192 and 401131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401131217) 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 11 ways as a sum of consecutive naturals, for example, 264719 + ... + 266229.

It is an arithmetic number, because the mean of its divisors is an integer number (27600426).

Almost surely, 2401131214 is an apocalyptic number.

401131214 is a deficient number, since it is larger than the sum of its proper divisors (261279010).

401131214 is a wasteful number, since it uses less digits than its factorization.

401131214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632 (or 2621 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 401131214 is about 20028.2603837677. The cubic root of 401131214 is about 737.5002173321.

Adding to 401131214 its reverse (412131104), we get a palindrome (813262318).

The spelling of 401131214 in words is "four hundred one million, one hundred thirty-one thousand, two hundred fourteen".

Divisors: 1 2 11 22 121 242 1097 1511 2194 3022 12067 16621 24134 33242 132737 182831 265474 365662 1657567 3315134 18233237 36466474 200565607 401131214