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28710591364 = 2276132192
BaseRepresentation
bin11010101111010010…
…001101101110000100
32202002220001011020201
4122233102031232010
5432244402410424
621104531340244
72034322000000
oct325722155604
982086034221
1028710591364
11111a3420264
125693151684
1329271c7c00
1415650c3700
15b3082bd44
hex6af48db84

28710591364 has 189 divisors, whose sum is σ = 66989788677. Its totient is φ = 10760244768.

The previous prime is 28710591323. The next prime is 28710591391. The reversal of 28710591364 is 46319501782.

The square root of 28710591364 is 169442.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4247128900 + 24463462464 = 65170^2 + 156408^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1511083747 + ... + 1511083765.

It is a 1-persistent number, because it is pandigital, but 2⋅28710591364 = 57421182728 is not.

Almost surely, 228710591364 is an apocalyptic number.

28710591364 is the 169442-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28710591364

28710591364 is an abundant number, since it is smaller than the sum of its proper divisors (38279197313).

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

28710591364 is an frugal number, since it uses more digits than its factorization.

28710591364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 28710591364 in words is "twenty-eight billion, seven hundred ten million, five hundred ninety-one thousand, three hundred sixty-four".