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4987820779 = 23375861129
BaseRepresentation
bin1001010010100110…
…00001101011101011
3110212121110112210221
410221103001223223
540203340231104
62142534150511
7234413530354
oct45123015353
913777415727
104987820779
11212a549637
12b724b2437
13616486156
14354610d2b
151e2d4cc54
hex1294c1aeb

4987820779 has 8 divisors (see below), whose sum is σ = 5345350560. Its totient is φ = 4642013376.

The previous prime is 4987820741. The next prime is 4987820807. The reversal of 4987820779 is 9770287894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4987820779 - 213 = 4987812587 is a prime.

It is a super-2 number, since 2×49878207792 = 49756712246848333682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4987820879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2929714 + ... + 2931415.

It is an arithmetic number, because the mean of its divisors is an integer number (668168820).

Almost surely, 24987820779 is an apocalyptic number.

4987820779 is a deficient number, since it is larger than the sum of its proper divisors (357529781).

4987820779 is a wasteful number, since it uses less digits than its factorization.

4987820779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861189.

The product of its (nonzero) digits is 14224896, while the sum is 61.

The square root of 4987820779 is about 70624.5055133132. The cubic root of 4987820779 is about 1708.5864061666.

The spelling of 4987820779 in words is "four billion, nine hundred eighty-seven million, eight hundred twenty thousand, seven hundred seventy-nine".

Divisors: 1 23 37 851 5861129 134805967 216861773 4987820779