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401520552 = 23317984119
BaseRepresentation
bin10111111011101…
…011011110101000
31000222112100122120
4113323223132220
51310242124202
6103501551240
712643603566
oct2773533650
91028470576
10401520552
11196714374
12b2575520
1365254734
143b47ca36
15253b40bc
hex17eeb7a8

401520552 has 32 divisors (see below), whose sum is σ = 1062849600. Its totient is φ = 125967104.

The previous prime is 401520523. The next prime is 401520557. The reversal of 401520552 is 255025104.

Adding to 401520552 its reverse (255025104), we get a palindrome (656545656).

It is a happy number.

It is a super-2 number, since 2×4015205522 = 322437507356769408, 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 (401520557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491652 + ... + 492467.

It is an arithmetic number, because the mean of its divisors is an integer number (33214050).

Almost surely, 2401520552 is an apocalyptic number.

It is an amenable number.

401520552 is an abundant number, since it is smaller than the sum of its proper divisors (661329048).

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

401520552 is a wasteful number, since it uses less digits than its factorization.

401520552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984145 (or 984141 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 401520552 is about 20037.9777422773. The cubic root of 401520552 is about 737.7387461072.

The spelling of 401520552 in words is "four hundred one million, five hundred twenty thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 984119 1968238 2952357 3936476 5904714 7872952 11809428 16730023 23618856 33460046 50190069 66920092 100380138 133840184 200760276 401520552