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805272054 = 23383350423
BaseRepresentation
bin101111111111110…
…111100111110110
32002010021001120220
4233333313213312
53122122201204
6211523435210
725645461636
oct5777674766
92063231526
10805272054
113836118a4
121a5825b06
13caaaa752
1478d3c6c6
154aa691d9
hex2fff79f6

805272054 has 16 divisors (see below), whose sum is σ = 1614753792. Its totient is φ = 267722408.

The previous prime is 805272047. The next prime is 805272119. The reversal of 805272054 is 450272508.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172914 + ... + 177509.

It is an arithmetic number, because the mean of its divisors is an integer number (100922112).

Almost surely, 2805272054 is an apocalyptic number.

805272054 is an abundant number, since it is smaller than the sum of its proper divisors (809481738).

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

805272054 is a wasteful number, since it uses less digits than its factorization.

805272054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350811.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 805272054 is about 28377.3158350116. The cubic root of 805272054 is about 930.3525290878.

The spelling of 805272054 in words is "eight hundred five million, two hundred seventy-two thousand, fifty-four".

Divisors: 1 2 3 6 383 766 1149 2298 350423 700846 1051269 2102538 134212009 268424018 402636027 805272054