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402442341 = 37231471879
BaseRepresentation
bin10111111111001…
…100100001100101
31001001021012002220
4113333030201211
51311011123331
6103533422553
712654463200
oct2777144145
91031235086
10402442341
11197193984
12b293aa59
13654b8182
143b63c937
15254e7296
hex17fcc865

402442341 has 48 divisors (see below), whose sum is σ = 658391040. Its totient is φ = 217697760.

The previous prime is 402442319. The next prime is 402442361. The reversal of 402442341 is 143244204.

It is a happy number.

It is not a de Polignac number, because 402442341 - 210 = 402441317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402442361) 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 47 ways as a sum of consecutive naturals, for example, 213240 + ... + 215118.

It is an arithmetic number, because the mean of its divisors is an integer number (13716480).

Almost surely, 2402442341 is an apocalyptic number.

It is an amenable number.

402442341 is a deficient number, since it is larger than the sum of its proper divisors (255948699).

402442341 is a wasteful number, since it uses less digits than its factorization.

402442341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 402442341 is about 20060.9656048756. The cubic root of 402442341 is about 738.3028681022.

Adding to 402442341 its reverse (143244204), we get a palindrome (545686545).

The spelling of 402442341 in words is "four hundred two million, four hundred forty-two thousand, three hundred forty-one".

Divisors: 1 3 7 21 31 47 49 93 141 147 217 329 651 987 1457 1519 1879 2303 4371 4557 5637 6909 10199 13153 30597 39459 58249 71393 88313 92071 174747 214179 264939 276213 407743 618191 1223229 1854573 2737703 2854201 4327337 8213109 8562603 12982011 19163921 57491763 134147447 402442341