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272891392 = 292918379
BaseRepresentation
bin10000010000111…
…111111000000000
3201000111022121121
4100100333320000
51024330011032
643025002024
76522352504
oct2020777000
9630438547
10272891392
11130049384
1277483314
13446c8bc7
1428358304
1518e56a97
hex1043fe00

272891392 has 40 divisors (see below), whose sum is σ = 564082200. Its totient is φ = 131733504.

The previous prime is 272891383. The next prime is 272891413. The reversal of 272891392 is 293198272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5659 + ... + 24037.

It is an arithmetic number, because the mean of its divisors is an integer number (14102055).

Almost surely, 2272891392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272891392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282041100).

272891392 is an abundant number, since it is smaller than the sum of its proper divisors (291190808).

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

272891392 is an equidigital number, since it uses as much as digits as its factorization.

272891392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18426 (or 18410 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 272891392 is about 16519.4246873189. The cubic root of 272891392 is about 648.6293737856.

The spelling of 272891392 in words is "two hundred seventy-two million, eight hundred ninety-one thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 29 32 58 64 116 128 232 256 464 512 928 1856 3712 7424 14848 18379 36758 73516 147032 294064 532991 588128 1065982 1176256 2131964 2352512 4263928 4705024 8527856 9410048 17055712 34111424 68222848 136445696 272891392