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272808640944 = 243273753791747
BaseRepresentation
bin1111111000010010101…
…0011000000110110000
3222002011111120212102200
43332010222120012300
513432203003002234
6325154311543200
725465311121140
oct3760452300660
9862144525380
10272808640944
11a5774402834
1244a5708ab00
131c9585cab38
14d2bdb2a920
15716a429d99
hex3f84a981b0

272808640944 has 480 divisors, whose sum is σ = 925132216320. Its totient is φ = 73423853568.

The previous prime is 272808640933. The next prime is 272808640967. The reversal of 272808640944 is 449046808272.

It is a super-2 number, since 2×2728086409442 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 156157479 + ... + 156159225.

It is an arithmetic number, because the mean of its divisors is an integer number (1927358784).

Almost surely, 2272808640944 is an apocalyptic number.

272808640944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272808640944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462566108160).

272808640944 is an abundant number, since it is smaller than the sum of its proper divisors (652323575376).

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

272808640944 is a wasteful number, since it uses less digits than its factorization.

272808640944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 272808640944 in words is "two hundred seventy-two billion, eight hundred eight million, six hundred forty thousand, nine hundred forty-four".