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401254152 = 233131286071
BaseRepresentation
bin10111111010101…
…010011100001000
31000222000211012220
4113322222130020
51310210113102
6103452134040
712641414115
oct2772523410
91028024186
10401254152
11196552202
12b2467320
13651903c0
143b40d90c
15253601bc
hex17eaa708

401254152 has 32 divisors (see below), whose sum is σ = 1080300480. Its totient is φ = 123462720.

The previous prime is 401254151. The next prime is 401254153. The reversal of 401254152 is 251452104.

It is an interprime number because it is at equal distance from previous prime (401254151) and next prime (401254153).

It is a super-2 number, since 2×4012541522 = 322009788994478208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (401254151) 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, 642724 + ... + 643347.

It is an arithmetic number, because the mean of its divisors is an integer number (33759390).

Almost surely, 2401254152 is an apocalyptic number.

It is an amenable number.

401254152 is an abundant number, since it is smaller than the sum of its proper divisors (679046328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401254152 is a wasteful number, since it uses less digits than its factorization.

401254152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286093 (or 1286089 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 401254152 is about 20031.3292619337. The cubic root of 401254152 is about 737.5755522331.

The spelling of 401254152 in words is "four hundred one million, two hundred fifty-four thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1286071 2572142 3858213 5144284 7716426 10288568 15432852 16718923 30865704 33437846 50156769 66875692 100313538 133751384 200627076 401254152