Search a number
-
+
12352002400 = 255217986257
BaseRepresentation
bin10111000000011110…
…01001100101100000
31011212211110201212101
423200033021211200
5200244103034100
65401402140144
7615044200543
oct134017114540
934784421771
1012352002400
115269424251
1224887b1654
13121b06c27a
1485268a85a
154c460286a
hex2e03c9960

12352002400 has 72 divisors (see below), whose sum is σ = 30323137320. Its totient is φ = 4913141760.

The previous prime is 12352002373. The next prime is 12352002401. The reversal of 12352002400 is 420025321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12352002401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100072 + ... + 186328.

It is an arithmetic number, because the mean of its divisors is an integer number (421154685).

Almost surely, 212352002400 is an apocalyptic number.

12352002400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12352002400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15161568660).

12352002400 is an abundant number, since it is smaller than the sum of its proper divisors (17971134920).

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

12352002400 is a wasteful number, since it uses less digits than its factorization.

12352002400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86456 (or 86443 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 12352002400 its reverse (420025321), we get a palindrome (12772027721).

The spelling of 12352002400 in words is "twelve billion, three hundred fifty-two million, two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 179 200 358 400 716 800 895 1432 1790 2864 3580 4475 5728 7160 8950 14320 17900 28640 35800 71600 86257 143200 172514 345028 431285 690056 862570 1380112 1725140 2156425 2760224 3450280 4312850 6900560 8625700 13801120 15440003 17251400 30880006 34502800 61760012 69005600 77200015 123520024 154400030 247040048 308800060 386000075 494080096 617600120 772000150 1235200240 1544000300 2470400480 3088000600 6176001200 12352002400