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28995580412 = 227248895103
BaseRepresentation
bin11011000000010001…
…010111000111111100
32202211202022002201122
4123000101113013330
5433340332033122
621153111530112
72044352236601
oct330021270774
982752262648
1028995580412
111132a2817a7
125752689938
13297126b396
141590caa6a8
15b4a873142
hex6c04571fc

28995580412 has 6 divisors (see below), whose sum is σ = 50742265728. Its totient is φ = 14497790204.

The previous prime is 28995580387. The next prime is 28995580423. The reversal of 28995580412 is 21408559982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3624447548 + ... + 3624447555.

It is an arithmetic number, because the mean of its divisors is an integer number (8457044288).

Almost surely, 228995580412 is an apocalyptic number.

It is an amenable number.

28995580412 is a deficient number, since it is larger than the sum of its proper divisors (21746685316).

28995580412 is a wasteful number, since it uses less digits than its factorization.

28995580412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248895107 (or 7248895105 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The spelling of 28995580412 in words is "twenty-eight billion, nine hundred ninety-five million, five hundred eighty thousand, four hundred twelve".

Divisors: 1 2 4 7248895103 14497790206 28995580412