Search a number
-
+
812948412232 = 231159316949409
BaseRepresentation
bin10111101010001111000…
…00000101011101001000
32212201100202212020100001
423311013200011131020
5101304404243142412
61421244025452344
7112506422330005
oct13650740053510
92781322766301
10812948412232
11293851204530
1211167a9410b4
135b878758368
142b4bdd028ac
151622ee53957
hexbd47805748

812948412232 has 64 divisors (see below), whose sum is σ = 1691600760000. Its totient is φ = 363136942080.

The previous prime is 812948412217. The next prime is 812948412239. The reversal of 812948412232 is 232214849218.

It is not an unprimeable number, because it can be changed into a prime (812948412239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16428744 + ... + 16478152.

It is an arithmetic number, because the mean of its divisors is an integer number (26431261875).

Almost surely, 2812948412232 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 812948412232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845800380000).

812948412232 is an abundant number, since it is smaller than the sum of its proper divisors (878652347768).

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

812948412232 is a wasteful number, since it uses less digits than its factorization.

812948412232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52654 (or 52650 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The spelling of 812948412232 in words is "eight hundred twelve billion, nine hundred forty-eight million, four hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 59 88 118 236 472 649 1298 2596 3169 5192 6338 12676 25352 34859 49409 69718 98818 139436 186971 197636 278872 373942 395272 543499 747884 1086998 1495768 2056681 2173996 2915131 4113362 4347992 5830262 8226724 11660524 16453448 23321048 32066441 64132882 128265764 156577121 256531528 313154242 626308484 1252616968 1722348331 3444696662 6889393324 9238050139 13778786648 18476100278 36952200556 73904401112 101618551529 203237103058 406474206116 812948412232