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272925220 = 22573318617
BaseRepresentation
bin10000010001001…
…000001000100100
3201000120001000111
4100101020020210
51024332101340
643025422404
76522553231
oct2021101044
9630501014
10272925220
11130071837
127749aa04
134470b419
1428366788
1518e61aea
hex10448224

272925220 has 24 divisors (see below), whose sum is σ = 573955704. Its totient is φ = 109015296.

The previous prime is 272925197. The next prime is 272925229. The reversal of 272925220 is 22529272.

It can be written as a sum of positive squares in 4 ways, for example, as 181225444 + 91699776 = 13462^2 + 9576^2 .

It is not an unprimeable number, because it can be changed into a prime (272925229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5352 + ... + 23968.

It is an arithmetic number, because the mean of its divisors is an integer number (23914821).

Almost surely, 2272925220 is an apocalyptic number.

272925220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272925220 is an abundant number, since it is smaller than the sum of its proper divisors (301030484).

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

272925220 is a wasteful number, since it uses less digits than its factorization.

272925220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19359 (or 19357 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 272925220 is about 16520.4485411262. The cubic root of 272925220 is about 648.6561743474.

It can be divided in two parts, 2729252 and 20, that added together give a palindrome (2729272).

The spelling of 272925220 in words is "two hundred seventy-two million, nine hundred twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 733 1466 2932 3665 7330 14660 18617 37234 74468 93085 186170 372340 13646261 27292522 54585044 68231305 136462610 272925220