Search a number
-
+
807197472 = 253222712347
BaseRepresentation
bin110000000111001…
…101101100100000
32002020212212202200
4300013031230200
53123120304342
6212033013200
726001031254
oct6007155440
92066785680
10807197472
11384707454
121a63b4200
13cb302c53
14792c0264
154ace994c
hex301cdb20

807197472 has 72 divisors (see below), whose sum is σ = 2305766736. Its totient is φ = 267858816.

The previous prime is 807197459. The next prime is 807197477. The reversal of 807197472 is 274791708.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (807197477) 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, 59203 + ... + 71549.

It is an arithmetic number, because the mean of its divisors is an integer number (32024538).

Almost surely, 2807197472 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 807197472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152883368).

807197472 is an abundant number, since it is smaller than the sum of its proper divisors (1498569264).

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

807197472 is a wasteful number, since it uses less digits than its factorization.

807197472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12590 (or 12579 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 807197472 is about 28411.2208818981. The cubic root of 807197472 is about 931.0934346824.

The spelling of 807197472 in words is "eight hundred seven million, one hundred ninety-seven thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 227 288 454 681 908 1362 1816 2043 2724 3632 4086 5448 7264 8172 10896 12347 16344 21792 24694 32688 37041 49388 65376 74082 98776 111123 148164 197552 222246 296328 395104 444492 592656 888984 1185312 1777968 2802769 3555936 5605538 8408307 11211076 16816614 22422152 25224921 33633228 44844304 50449842 67266456 89688608 100899684 134532912 201799368 269065824 403598736 807197472