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516276240 = 243513116421
BaseRepresentation
bin11110110001011…
…100000000010000
31022222110112212020
4132301130000100
52024131314430
6123121331440
715536163354
oct3661340020
91288415766
10516276240
11245473a87
12124a96b80
1382c635cc
144c7d1464
15304d0b10
hex1ec5c010

516276240 has 80 divisors (see below), whose sum is σ = 1612771776. Its totient is φ = 136614400.

The previous prime is 516276217. The next prime is 516276251. The reversal of 516276240 is 42672615.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23230 + ... + 39650.

Almost surely, 2516276240 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 516276240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806385888).

516276240 is an abundant number, since it is smaller than the sum of its proper divisors (1096495536).

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

516276240 is a wasteful number, since it uses less digits than its factorization.

516276240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16568 (or 16562 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 516276240 is about 22721.7129635950. The cubic root of 516276240 is about 802.2210363737.

The spelling of 516276240 in words is "five hundred sixteen million, two hundred seventy-six thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 131 240 262 393 524 655 786 1048 1310 1572 1965 2096 2620 3144 3930 5240 6288 7860 10480 15720 16421 31440 32842 49263 65684 82105 98526 131368 164210 197052 246315 262736 328420 394104 492630 656840 788208 985260 1313680 1970520 2151151 3941040 4302302 6453453 8604604 10755755 12906906 17209208 21511510 25813812 32267265 34418416 43023020 51627624 64534530 86046040 103255248 129069060 172092080 258138120 516276240