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2757120612481 = 5076415431241
BaseRepresentation
bin101000000111110001001…
…100011101100010000001
3100202120121110212000100001
4220013301030131202001
5330133040334044411
65510334223200001
7403124006345344
oct50076114354201
910676543760301
102757120612481
11973319787034
12386422146001
1316ccc2a568a1
149763407a45b
154babbb1adc1
hex281f131d881

2757120612481 has 4 divisors (see below), whose sum is σ = 2757126551364. Its totient is φ = 2757114673600.

The previous prime is 2757120612479. The next prime is 2757120612517. The reversal of 2757120612481 is 1842160217572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2389757341456 + 367363271025 = 1545884^2 + 606105^2 .

It is a cyclic number.

It is not a de Polignac number, because 2757120612481 - 21 = 2757120612479 is a prime.

It is a super-2 number, since 2×27571206124812 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2757120612461) 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, 2207980 + ... + 3223261.

It is an arithmetic number, because the mean of its divisors is an integer number (689281637841).

Almost surely, 22757120612481 is an apocalyptic number.

It is an amenable number.

2757120612481 is a deficient number, since it is larger than the sum of its proper divisors (5938883).

2757120612481 is an equidigital number, since it uses as much as digits as its factorization.

2757120612481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938882.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 2757120612481 in words is "two trillion, seven hundred fifty-seven billion, one hundred twenty million, six hundred twelve thousand, four hundred eighty-one".

Divisors: 1 507641 5431241 2757120612481