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280005028053 = 393335009351
BaseRepresentation
bin1000001001100011001…
…10011010100011010101
3222202202000212012200120
410010301212122203111
514041422241344203
6332344343302153
726141533316442
oct4046146324325
9882660765616
10280005028053
11a88275a19a3
124632514a959
13205344c476a
14d7a37a89c9
15743c0d7b53
hex413199a8d5

280005028053 has 4 divisors (see below), whose sum is σ = 373340037408. Its totient is φ = 186670018700.

The previous prime is 280005028031. The next prime is 280005028067. The reversal of 280005028053 is 350820500082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 280005028053 - 226 = 279937919189 is a prime.

It is a super-2 number, since 2×2800050280532 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280005028013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 46667504673 + ... + 46667504678.

It is an arithmetic number, because the mean of its divisors is an integer number (93335009352).

Almost surely, 2280005028053 is an apocalyptic number.

It is an amenable number.

280005028053 is a deficient number, since it is larger than the sum of its proper divisors (93335009355).

280005028053 is an equidigital number, since it uses as much as digits as its factorization.

280005028053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93335009354.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 280005028053 in words is "two hundred eighty billion, five million, twenty-eight thousand, fifty-three".

Divisors: 1 3 93335009351 280005028053