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401254145 = 5174720637
BaseRepresentation
bin10111111010101…
…010011100000001
31000222000211012122
4113322222130001
51310210113040
6103452134025
712641414105
oct2772523401
91028024178
10401254145
111965521a6
12b2467315
13651903b6
143b40d905
15253601b5
hex17eaa701

401254145 has 8 divisors (see below), whose sum is σ = 509828904. Its totient is φ = 302120704.

The previous prime is 401254129. The next prime is 401254151. The reversal of 401254145 is 541452104.

401254145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 215531761 + 185722384 = 14681^2 + 13628^2 .

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 401254145 - 24 = 401254129 is a prime.

It is a super-2 number, since 2×4012541452 = 322009777759362050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2360234 + ... + 2360403.

It is an arithmetic number, because the mean of its divisors is an integer number (63728613).

Almost surely, 2401254145 is an apocalyptic number.

It is an amenable number.

401254145 is a deficient number, since it is larger than the sum of its proper divisors (108574759).

401254145 is a wasteful number, since it uses less digits than its factorization.

401254145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720659.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 401254145 is about 20031.3290872074. The cubic root of 401254145 is about 737.5755479440.

The spelling of 401254145 in words is "four hundred one million, two hundred fifty-four thousand, one hundred forty-five".

Divisors: 1 5 17 85 4720637 23603185 80250829 401254145