Search a number
-
+
74994580 = 22529314397
BaseRepresentation
bin1000111100001…
…01001110010100
312020010010020001
410132011032110
5123144311310
611235221044
71600305043
oct436051624
9166103201
1074994580
11393725a1
1221147784
13126c9cbb
149d6255a
1568b593a
hex4785394

74994580 has 96 divisors (see below), whose sum is σ = 173859840. Its totient is φ = 27095040.

The previous prime is 74994553. The next prime is 74994581. The reversal of 74994580 is 8549947.

It is a self number, because there is not a number n which added to its sum of digits gives 74994580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74994581) 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, 773092 + ... + 773188.

It is an arithmetic number, because the mean of its divisors is an integer number (1811040).

Almost surely, 274994580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74994580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86929920).

74994580 is an abundant number, since it is smaller than the sum of its proper divisors (98865260).

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

74994580 is a wasteful number, since it uses less digits than its factorization.

74994580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 74994580 is about 8659.9411083448. The cubic root of 74994580 is about 421.7061737283.

The spelling of 74994580 in words is "seventy-four million, nine hundred ninety-four thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 29 31 43 58 62 86 97 116 124 145 155 172 194 215 290 310 388 430 485 580 620 860 899 970 1247 1333 1798 1940 2494 2666 2813 3007 3596 4171 4495 4988 5332 5626 6014 6235 6665 8342 8990 11252 12028 12470 13330 14065 15035 16684 17980 20855 24940 26660 28130 30070 38657 41710 56260 60140 77314 83420 87203 120959 129301 154628 174406 193285 241918 258602 348812 386570 436015 483836 517204 604795 646505 773140 872030 1209590 1293010 1744060 2419180 2586020 3749729 7499458 14998916 18748645 37497290 74994580