Search a number
-
+
74972222248 = 23721142141299
BaseRepresentation
bin100010111010010110…
…0010101001100101000
321011111221110111112011
41011310230111030220
52212020342102443
654235230525304
75262611242300
oct1056454251450
9234457414464
1074972222248
1129882957260
1212644066834
1370ba5cb8b1
1438b3126600
151e3bdcbb9d
hex1174b15328

74972222248 has 96 divisors (see below), whose sum is σ = 178817436000. Its totient is φ = 29139868800.

The previous prime is 74972222207. The next prime is 74972222263. The reversal of 74972222248 is 84222227947.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1794703 + ... + 1836001.

It is an arithmetic number, because the mean of its divisors is an integer number (1862681625).

Almost surely, 274972222248 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 74972222248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89408718000).

74972222248 is an abundant number, since it is smaller than the sum of its proper divisors (103845213752).

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

74972222248 is a wasteful number, since it uses less digits than its factorization.

74972222248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41751 (or 41740 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 49.

The spelling of 74972222248 in words is "seventy-four billion, nine hundred seventy-two million, two hundred twenty-two thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 49 56 77 88 98 154 196 308 392 421 539 616 842 1078 1684 2156 2947 3368 4312 4631 5894 9262 11788 18524 20629 23576 32417 37048 41258 41299 64834 82516 82598 129668 165032 165196 226919 259336 289093 330392 453838 454289 578186 907676 908578 1156372 1815352 1817156 2023651 2312744 3180023 3634312 4047302 6360046 8094604 12720092 16189208 17386879 22260161 25440184 34773758 44520322 69547516 89040644 121708153 139095032 178081288 191255669 243416306 382511338 486832612 765022676 851957071 973665224 1338789683 1530045352 1703914142 2677579366 3407828284 5355158732 6815656568 9371527781 10710317464 18743055562 37486111124 74972222248