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516246980 = 225296011481
BaseRepresentation
bin11110110001010…
…100110111000100
31022222102001201112
4132301110313010
52024124400410
6123120544152
715536012144
oct3661246704
91288361645
10516246980
11245453aa7
12124a82058
1382c531b2
144c7c4924
15304c7105
hex1ec54dc4

516246980 has 48 divisors (see below), whose sum is σ = 1124126640. Its totient is φ = 198912000.

The previous prime is 516246961. The next prime is 516246989. The reversal of 516246980 is 89642615.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4401604 + 511845376 = 2098^2 + 22624^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (516246989) 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, 347840 + ... + 349320.

It is an arithmetic number, because the mean of its divisors is an integer number (23419305).

Almost surely, 2516246980 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 516246980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562063320).

516246980 is an abundant number, since it is smaller than the sum of its proper divisors (607879660).

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

516246980 is a wasteful number, since it uses less digits than its factorization.

516246980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 516246980 is about 22721.0690769603. The cubic root of 516246980 is about 802.2058807721.

The spelling of 516246980 in words is "five hundred sixteen million, two hundred forty-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 601 1202 1481 2404 2962 3005 5924 6010 7405 12020 14810 17429 29620 34858 42949 69716 85898 87145 171796 174290 214745 348580 429490 858980 890081 1780162 3560324 4450405 8900810 17801620 25812349 51624698 103249396 129061745 258123490 516246980