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74899534481 = 615232347727
BaseRepresentation
bin100010111000001011…
…1000011001010010001
321011022212200120122122
41011300113003022101
52211343240100411
654224112544025
75261036352512
oct1056027031221
9234285616578
1074899534481
112984591a922
1212623852015
1370a852b895
1438a7604a09
151e3581e9db
hex11705c3291

74899534481 has 8 divisors (see below), whose sum is σ = 76272987264. Its totient is φ = 73530778320.

The previous prime is 74899534393. The next prime is 74899534511. The reversal of 74899534481 is 18443599847.

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 74899534481 - 226 = 74832425617 is a prime.

It is a super-2 number, since 2×748995344812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74899534081) 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, 1141961 + ... + 1205766.

It is an arithmetic number, because the mean of its divisors is an integer number (9534123408).

Almost surely, 274899534481 is an apocalyptic number.

It is an amenable number.

74899534481 is a deficient number, since it is larger than the sum of its proper divisors (1373452783).

74899534481 is a wasteful number, since it uses less digits than its factorization.

74899534481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348311.

The product of its digits is 34836480, while the sum is 62.

The spelling of 74899534481 in words is "seventy-four billion, eight hundred ninety-nine million, five hundred thirty-four thousand, four hundred eighty-one".

Divisors: 1 61 523 31903 2347727 143211347 1227861221 74899534481