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401408974 = 21237162251
BaseRepresentation
bin10111111011010…
…000001111001110
31000222022200121001
4113323100033032
51310230041344
6103455330514
712642630361
oct2773201716
91028280531
10401408974
1119664855a
12b2520a3a
1365215a05
143b4500d8
1525390ed4
hex17ed03ce

401408974 has 8 divisors (see below), whose sum is σ = 602603928. Its totient is φ = 200541000.

The previous prime is 401408971. The next prime is 401409011. The reversal of 401408974 is 479804104.

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

It is a super-2 number, since 2×4014089742 = 322258328815465352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401408971) 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 3 ways as a sum of consecutive naturals, for example, 78652 + ... + 83599.

It is an arithmetic number, because the mean of its divisors is an integer number (75325491).

Almost surely, 2401408974 is an apocalyptic number.

401408974 is a deficient number, since it is larger than the sum of its proper divisors (201194954).

401408974 is a wasteful number, since it uses less digits than its factorization.

401408974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163490.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 401408974 is about 20035.1933856402. The cubic root of 401408974 is about 737.6704033707.

The spelling of 401408974 in words is "four hundred one million, four hundred eight thousand, nine hundred seventy-four".

Divisors: 1 2 1237 2474 162251 324502 200704487 401408974