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272276391040 = 275425431861
BaseRepresentation
bin1111110110010011110…
…0000000010010000000
3222000210102001202211021
43331210330000102000
513430110224003130
6325025415555224
725446156065143
oct3754474002200
9860712052737
10272276391040
11a5520a19585
124492898bb14
131c8a2263974
14d26d17c05a
15713884137a
hex3f64f00480

272276391040 has 32 divisors (see below), whose sum is σ = 650910748860. Its totient is φ = 108910556160.

The previous prime is 272276391007. The next prime is 272276391043. The reversal of 272276391040 is 40193672272.

It can be written as a sum of positive squares in 2 ways, for example, as 257406051904 + 14870339136 = 507352^2 + 121944^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (272276391043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212715291 + ... + 212716570.

Almost surely, 2272276391040 is an apocalyptic number.

272276391040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272276391040 is an abundant number, since it is smaller than the sum of its proper divisors (378634357820).

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

272276391040 is an equidigital number, since it uses as much as digits as its factorization.

272276391040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425431880 (or 425431868 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 272276391040 in words is "two hundred seventy-two billion, two hundred seventy-six million, three hundred ninety-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 425431861 850863722 1701727444 2127159305 3403454888 4254318610 6806909776 8508637220 13613819552 17017274440 27227639104 34034548880 54455278208 68069097760 136138195520 272276391040