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74893530881 = 1331353526459
BaseRepresentation
bin100010111000000000…
…0001001011100000001
321011022110101120021002
41011300000021130001
52211340220442011
654223340141345
75260634336351
oct1056000113401
9234273346232
1074893530881
112984249a274
1212621837855
1370a7209060
1438a68c0b61
151e35035c3b
hex1170009701

74893530881 has 16 divisors (see below), whose sum is σ = 83492344320. Its totient is φ = 66712757760.

The previous prime is 74893530853. The next prime is 74893530931. The reversal of 74893530881 is 18803539847.

It is a cyclic number.

It is not a de Polignac number, because 74893530881 - 226 = 74826422017 is a prime.

It is a super-2 number, since 2×748935308812 (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 (74893530841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120971 + ... + 405488.

It is an arithmetic number, because the mean of its divisors is an integer number (5218271520).

Almost surely, 274893530881 is an apocalyptic number.

It is an amenable number.

74893530881 is a deficient number, since it is larger than the sum of its proper divisors (8598813439).

74893530881 is a wasteful number, since it uses less digits than its factorization.

74893530881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526856.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 74893530881 in words is "seventy-four billion, eight hundred ninety-three million, five hundred thirty thousand, eight hundred eighty-one".

Divisors: 1 13 31 353 403 4589 10943 142259 526459 6843967 16320229 185840027 212162977 2415920351 5761040837 74893530881