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28874457462 = 2323209235199
BaseRepresentation
bin11010111001000011…
…010100000101110110
32202112022101102021110
4122321003110011312
5433113330114322
621133103455450
72041351560504
oct327103240566
982468342243
1028874457462
1111277973294
125719bb7586
1329521402b6
14157cb7b674
15b3ede9c0c
hex6b90d4176

28874457462 has 16 divisors (see below), whose sum is σ = 60259737600. Its totient is φ = 9206348712.

The previous prime is 28874457461. The next prime is 28874457467. The reversal of 28874457462 is 26475447882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874457461) 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 7 ways as a sum of consecutive naturals, for example, 104617462 + ... + 104617737.

It is an arithmetic number, because the mean of its divisors is an integer number (3766233600).

Almost surely, 228874457462 is an apocalyptic number.

28874457462 is an abundant number, since it is smaller than the sum of its proper divisors (31385280138).

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

28874457462 is a wasteful number, since it uses less digits than its factorization.

28874457462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209235227.

The product of its digits is 24084480, while the sum is 57.

The spelling of 28874457462 in words is "twenty-eight billion, eight hundred seventy-four million, four hundred fifty-seven thousand, four hundred sixty-two".

Divisors: 1 2 3 6 23 46 69 138 209235199 418470398 627705597 1255411194 4812409577 9624819154 14437228731 28874457462