Search a number
-
+
74029880 = 2353495303
BaseRepresentation
bin1000110100110…
…01101100111000
312011022002220102
410122121230320
5122422424010
611202414532
71556146361
oct432315470
9164262812
1074029880
1138873821
1220961448
131244cb82
149b90b68
156774ba5
hex4699b38

74029880 has 32 divisors (see below), whose sum is σ = 167076000. Its totient is φ = 29521536.

The previous prime is 74029867. The next prime is 74029889. The reversal of 74029880 is 8892047.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74029889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11309 + ... + 16611.

It is an arithmetic number, because the mean of its divisors is an integer number (5221125).

Almost surely, 274029880 is an apocalyptic number.

It is an amenable number.

74029880 is an abundant number, since it is smaller than the sum of its proper divisors (93046120).

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

74029880 is a wasteful number, since it uses less digits than its factorization.

74029880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 74029880 is about 8604.0618314840. The cubic root of 74029880 is about 419.8901451163.

The spelling of 74029880 in words is "seventy-four million, twenty-nine thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 349 698 1396 1745 2792 3490 5303 6980 10606 13960 21212 26515 42424 53030 106060 212120 1850747 3701494 7402988 9253735 14805976 18507470 37014940 74029880