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74910944906 = 272868987973
BaseRepresentation
bin100010111000100001…
…0100100111010001010
321011100200011021210222
41011301002210322022
52211404200214111
654225201310042
75261235345200
oct1056102447212
9234320137728
1074910944906
1129851303726
1212627635322
1370aa9c5405
1438a8d35070
151e368257db
hex11710a4e8a

74910944906 has 24 divisors (see below), whose sum is σ = 130728484260. Its totient is φ = 32100630912.

The previous prime is 74910944903. The next prime is 74910944939. The reversal of 74910944906 is 60944901947.

It can be written as a sum of positive squares in 2 ways, for example, as 74892532225 + 18412681 = 273665^2 + 4291^2 .

It is a super-2 number, since 2×749109449062 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74910944903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807536 + ... + 895508.

Almost surely, 274910944906 is an apocalyptic number.

74910944906 is a deficient number, since it is larger than the sum of its proper divisors (55817539354).

74910944906 is a wasteful number, since it uses less digits than its factorization.

74910944906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96678 (or 96671 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 74910944906 in words is "seventy-four billion, nine hundred ten million, nine hundred forty-four thousand, nine hundred six".

Divisors: 1 2 7 14 49 98 8689 17378 60823 87973 121646 175946 425761 615811 851522 1231622 4310677 8621354 764397397 1528794794 5350781779 10701563558 37455472453 74910944906