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465100220 = 225131788847
BaseRepresentation
bin11011101110001…
…101110110111100
31012102011112120002
4123232031312330
51423031201340
6114052413432
714345200214
oct3356156674
91172145502
10465100220
1121959a752
1210b917278
1375485b40
1445aad244
152ac72715
hex1bb8ddbc

465100220 has 24 divisors (see below), whose sum is σ = 1051842624. Its totient is φ = 171729216.

The previous prime is 465100199. The next prime is 465100243. The reversal of 465100220 is 22001564.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 465100192 and 465100201.

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 7 ways as a sum of consecutive naturals, for example, 894164 + ... + 894683.

It is an arithmetic number, because the mean of its divisors is an integer number (43826776).

Almost surely, 2465100220 is an apocalyptic number.

It is an amenable number.

465100220 is an abundant number, since it is smaller than the sum of its proper divisors (586742404).

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

465100220 is a wasteful number, since it uses less digits than its factorization.

465100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788869 (or 1788867 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 465100220 is about 21566.1823232579. The cubic root of 465100220 is about 774.7867439601.

Adding to 465100220 its reverse (22001564), we get a palindrome (487101784).

The spelling of 465100220 in words is "four hundred sixty-five million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1788847 3577694 7155388 8944235 17888470 23255011 35776940 46510022 93020044 116275055 232550110 465100220