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800505030 = 235132052577
BaseRepresentation
bin101111101101101…
…011110011000110
32001210021212110110
4233231223303012
53114412130110
6211233333450
725560115623
oct5755536306
92053255413
10800505030
11380956306
121a4107286
13c9acba20
147845b34a
154a426a20
hex2fb6bcc6

800505030 has 32 divisors (see below), whose sum is σ = 2068998624. Its totient is φ = 197047296.

The previous prime is 800505029. The next prime is 800505089. The reversal of 800505030 is 30505008.

It is a junction number, because it is equal to n+sod(n) for n = 800504988 and 800505006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025899 + ... + 1026678.

It is an arithmetic number, because the mean of its divisors is an integer number (64656207).

Almost surely, 2800505030 is an apocalyptic number.

800505030 is an abundant number, since it is smaller than the sum of its proper divisors (1268493594).

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

800505030 is a wasteful number, since it uses less digits than its factorization.

800505030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052600.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 800505030 is about 28293.1975923542. The cubic root of 800505030 is about 928.5130707647.

The spelling of 800505030 in words is "eight hundred million, five hundred five thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 2052577 4105154 6157731 10262885 12315462 20525770 26683501 30788655 53367002 61577310 80050503 133417505 160101006 266835010 400252515 800505030