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28635287551103 = 673831115906923
BaseRepresentation
bin1101000001011001011000…
…01001000111110001111111
310202101111200102110021220102
412200230230021013301333
512223130032103113403
6140522511451111315
76013555056102662
oct640545411076177
9122344612407812
1028635287551103
119140180336242
123265863a4253b
1312c93b04b873c
1470dd5353d6d9
15349d09a99b88
hex1a0b2c247c7f

28635287551103 has 8 divisors (see below), whose sum is σ = 29138561599488. Its totient is φ = 28134245317464.

The previous prime is 28635287551097. The next prime is 28635287551183. The reversal of 28635287551103 is 30115578253682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28635287551103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28635287551183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557927801 + ... + 557979122.

It is an arithmetic number, because the mean of its divisors is an integer number (3642320199936).

Almost surely, 228635287551103 is an apocalyptic number.

28635287551103 is a deficient number, since it is larger than the sum of its proper divisors (503274048385).

28635287551103 is a wasteful number, since it uses less digits than its factorization.

28635287551103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115907373.

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 28635287551103 in words is "twenty-eight trillion, six hundred thirty-five billion, two hundred eighty-seven million, five hundred fifty-one thousand, one hundred three".

Divisors: 1 67 383 25661 1115906923 74765763841 427392351509 28635287551103