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2750004513 = 3631121687
BaseRepresentation
bin1010001111101001…
…1011110100100001
321002122121201000000
42203322123310201
521113000121023
61132514050213
7125101436604
oct24372336441
97078551000
102750004513
111191340103
12648b79969
1334a973c09
141c132c33b
15111661243
hexa3e9bd21

2750004513 has 28 divisors (see below), whose sum is σ = 4256159488. Its totient is φ = 1774181880.

The previous prime is 2750004511. The next prime is 2750004527. The reversal of 2750004513 is 3154000572.

It is a happy number.

It is not a de Polignac number, because 2750004513 - 21 = 2750004511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2750004511) 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 27 ways as a sum of consecutive naturals, for example, 38245 + ... + 83442.

It is an arithmetic number, because the mean of its divisors is an integer number (152005696).

Almost surely, 22750004513 is an apocalyptic number.

It is an amenable number.

2750004513 is a deficient number, since it is larger than the sum of its proper divisors (1506154975).

2750004513 is an equidigital number, since it uses as much as digits as its factorization.

2750004513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121736 (or 121721 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2750004513 is about 52440.4854382566. The cubic root of 2750004513 is about 1401.0204317275.

The spelling of 2750004513 in words is "two billion, seven hundred fifty million, four thousand, five hundred thirteen".

Divisors: 1 3 9 27 31 81 93 243 279 729 837 2511 7533 22599 121687 365061 1095183 3285549 3772297 9856647 11316891 29569941 33950673 88709823 101852019 305556057 916668171 2750004513