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402103412 = 22971036349
BaseRepresentation
bin10111111101111…
…001110001110100
31001000121222011222
4113331321301310
51310414302122
6103522245512
712651552104
oct2775716164
91030558158
10402103412
11196a82277
12b27b6898
13653c9b19
143b591204
152547bb42
hex17f79c74

402103412 has 12 divisors (see below), whose sum is σ = 710936100. Its totient is φ = 198978816.

The previous prime is 402103393. The next prime is 402103417. The reversal of 402103412 is 214301204.

It can be written as a sum of positive squares in 2 ways, for example, as 334304656 + 67798756 = 18284^2 + 8234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402103417) 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 3 ways as a sum of consecutive naturals, for example, 517787 + ... + 518562.

It is an arithmetic number, because the mean of its divisors is an integer number (59244675).

Almost surely, 2402103412 is an apocalyptic number.

It is an amenable number.

402103412 is a deficient number, since it is larger than the sum of its proper divisors (308832688).

402103412 is a wasteful number, since it uses less digits than its factorization.

402103412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036450 (or 1036448 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 402103412 is about 20052.5163508224. The cubic root of 402103412 is about 738.0955485212.

Adding to 402103412 its reverse (214301204), we get a palindrome (616404616).

The spelling of 402103412 in words is "four hundred two million, one hundred three thousand, four hundred twelve".

Divisors: 1 2 4 97 194 388 1036349 2072698 4145396 100525853 201051706 402103412