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797872680 = 233451161367
BaseRepresentation
bin101111100011101…
…001001000101000
32001121100010120000
4233203221020220
53113223411210
6211101103000
725525543263
oct5743511050
92047303500
10797872680
1137a418610
121a3257a60
13c93b9817
1477d73cda
154a0a6ac0
hex2f8e9228

797872680 has 320 divisors, whose sum is σ = 2981594880. Its totient is φ = 189734400.

The previous prime is 797872633. The next prime is 797872687. The reversal of 797872680 is 86278797.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (797872687) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2173857 + ... + 2174223.

It is an arithmetic number, because the mean of its divisors is an integer number (9317484).

Almost surely, 2797872680 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 797872680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490797440).

797872680 is an abundant number, since it is smaller than the sum of its proper divisors (2183722200).

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

797872680 is a wasteful number, since it uses less digits than its factorization.

797872680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The square root of 797872680 is about 28246.6401541847. The cubic root of 797872680 is about 927.4941908903.

The spelling of 797872680 in words is "seven hundred ninety-seven million, eight hundred seventy-two thousand, six hundred eighty".