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74883930 = 23511376133
BaseRepresentation
bin1000111011010…
…10001101011010
312012220111102220
410131222031122
5123132241210
611233004510
71566334332
oct435521532
9165814386
1074883930
11392a7450
12210b3736
131268b824
149d340c2
156892c70
hex476a35a

74883930 has 64 divisors (see below), whose sum is σ = 201391488. Its totient is φ = 17660160.

The previous prime is 74883901. The next prime is 74883931. The reversal of 74883930 is 3938847.

It is not an unprimeable number, because it can be changed into a prime (74883931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9144 + ... + 15276.

It is an arithmetic number, because the mean of its divisors is an integer number (3146742).

Almost surely, 274883930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74883930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100695744).

74883930 is an abundant number, since it is smaller than the sum of its proper divisors (126507558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74883930 is a wasteful number, since it uses less digits than its factorization.

74883930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 74883930 is about 8653.5501385270. The cubic root of 74883930 is about 421.4986709290.

The spelling of 74883930 in words is "seventy-four million, eight hundred eighty-three thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 37 55 66 74 110 111 165 185 222 330 370 407 555 814 1110 1221 2035 2442 4070 6105 6133 12210 12266 18399 30665 36798 61330 67463 91995 134926 183990 202389 226921 337315 404778 453842 674630 680763 1011945 1134605 1361526 2023890 2269210 2496131 3403815 4992262 6807630 7488393 12480655 14976786 24961310 37441965 74883930