Search a number
-
+
1223101352 = 2311531911373
BaseRepresentation
bin100100011100111…
…0000101110101000
310011020110222122002
41020321300232220
510001103220402
6321211150132
742211122104
oct11071605650
93136428562
101223101352
11578455170
122a1745348
13166522415
14b8624904
15725a0602
hex48e70ba8

1223101352 has 64 divisors (see below), whose sum is σ = 2564213760. Its totient is φ = 542214400.

The previous prime is 1223101333. The next prime is 1223101387. The reversal of 1223101352 is 2531013221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890138 + ... + 891510.

It is an arithmetic number, because the mean of its divisors is an integer number (40065840).

Almost surely, 21223101352 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 1223101352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282106880).

1223101352 is an abundant number, since it is smaller than the sum of its proper divisors (1341112408).

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

1223101352 is a wasteful number, since it uses less digits than its factorization.

1223101352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1223101352 is about 34972.8659391821. The cubic root of 1223101352 is about 1069.4343975550.

Adding to 1223101352 its reverse (2531013221), we get a palindrome (3754114573).

The spelling of 1223101352 in words is "one billion, two hundred twenty-three million, one hundred one thousand, three hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 53 88 106 191 212 382 424 583 764 1166 1373 1528 2101 2332 2746 4202 4664 5492 8404 10123 10984 15103 16808 20246 30206 40492 60412 72769 80984 111353 120824 145538 222706 262243 291076 445412 524486 582152 800459 890824 1048972 1600918 2097944 2884673 3201836 5769346 6403672 11538692 13898879 23077384 27797758 55595516 111191032 152887669 305775338 611550676 1223101352