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28452491070 = 2351949916651
BaseRepresentation
bin11010011111111001…
…101000111100111110
32201102220101022012120
4122133321220330332
5431232314203240
621023151343410
72025036120003
oct323771507476
981386338176
1028452491070
1111080764733
125620821b66
1328b58aa543
14153cad98aa
15b17d47ad0
hex69fe68f3e

28452491070 has 32 divisors (see below), whose sum is σ = 71879978880. Its totient is φ = 7187997600.

The previous prime is 28452490993. The next prime is 28452491117. The reversal of 28452491070 is 7019425482.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24957756 + ... + 24958895.

It is an arithmetic number, because the mean of its divisors is an integer number (2246249340).

Almost surely, 228452491070 is an apocalyptic number.

28452491070 is an abundant number, since it is smaller than the sum of its proper divisors (43427487810).

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

28452491070 is a wasteful number, since it uses less digits than its factorization.

28452491070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49916680.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 28452491070 in words is "twenty-eight billion, four hundred fifty-two million, four hundred ninety-one thousand, seventy".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 49916651 99833302 149749953 249583255 299499906 499166510 748749765 948416369 1497499530 1896832738 2845249107 4742081845 5690498214 9484163690 14226245535 28452491070