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8540749093321 = 711091103598539
BaseRepresentation
bin111110001001000110001…
…0100001101100111001001
31010020111011111012112110101
41330102030110031213021
52104412423231441241
630055322125445401
71541022503321134
oct174221424154711
933214144175411
108540749093321
1127a312522a665
12b5b307710861
1349c50a062373
1421753574721b
15ec2701ede31
hex7c48c50d9c9

8540749093321 has 8 divisors (see below), whose sum is σ = 8740500436800. Its totient is φ = 8343204947280.

The previous prime is 8540749093319. The next prime is 8540749093361. The reversal of 8540749093321 is 1233909470458.

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

It is a cyclic number.

It is not a de Polignac number, because 8540749093321 - 21 = 8540749093319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8540749093361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551791531 + ... + 551807008.

It is an arithmetic number, because the mean of its divisors is an integer number (1092562554600).

Almost surely, 28540749093321 is an apocalyptic number.

It is an amenable number.

8540749093321 is a deficient number, since it is larger than the sum of its proper divisors (199751343479).

8540749093321 is a wasteful number, since it uses less digits than its factorization.

8540749093321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103598719.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 8540749093321 in words is "eight trillion, five hundred forty billion, seven hundred forty-nine million, ninety-three thousand, three hundred twenty-one".

Divisors: 1 71 109 7739 1103598539 78355496269 120292240751 8540749093321