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401523423 = 3719120163
BaseRepresentation
bin10111111011101…
…100001011011111
31000222112111120220
4113323230023133
51310242222143
6103502012423
712643615140
oct2773541337
91028474526
10401523423
11196716544
12b2577113
1365255b32
143b47dac7
15253b4d83
hex17eec2df

401523423 has 8 divisors (see below), whose sum is σ = 611845248. Its totient is φ = 229441944.

The previous prime is 401523407. The next prime is 401523467. The reversal of 401523423 is 324325104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401523423 - 24 = 401523407 is a prime.

It is a super-2 number, since 2×4015234232 = 322442118435273858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401523393 and 401523402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401523623) 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, 9560061 + ... + 9560102.

It is an arithmetic number, because the mean of its divisors is an integer number (76480656).

Almost surely, 2401523423 is an apocalyptic number.

401523423 is a deficient number, since it is larger than the sum of its proper divisors (210321825).

401523423 is a wasteful number, since it uses less digits than its factorization.

401523423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19120173.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 401523423 is about 20038.0493811149. The cubic root of 401523423 is about 737.7405044587.

Adding to 401523423 its reverse (324325104), we get a palindrome (725848527).

The spelling of 401523423 in words is "four hundred one million, five hundred twenty-three thousand, four hundred twenty-three".

Divisors: 1 3 7 21 19120163 57360489 133841141 401523423