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53016796878 = 2323936971267
BaseRepresentation
bin110001011000000011…
…000001111011001110
312001211211110022221120
4301120003001323032
51332034300000003
640204445541410
73554543223633
oct613003017316
9161754408846
1053016796878
1120536666211
12a337274866
134ccba85736
1427cd26a18a
1515a4655853
hexc580c1ece

53016796878 has 16 divisors (see below), whose sum is σ = 106477251840. Its totient is φ = 17598322616.

The previous prime is 53016796871. The next prime is 53016796909. The reversal of 53016796878 is 87869761035.

It is a super-2 number, since 2×530167968782 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53016796871) 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, 18484200 + ... + 18487067.

It is an arithmetic number, because the mean of its divisors is an integer number (6654828240).

Almost surely, 253016796878 is an apocalyptic number.

53016796878 is an abundant number, since it is smaller than the sum of its proper divisors (53460454962).

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

53016796878 is a wasteful number, since it uses less digits than its factorization.

53016796878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36971511.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 53016796878 in words is "fifty-three billion, sixteen million, seven hundred ninety-six thousand, eight hundred seventy-eight".

Divisors: 1 2 3 6 239 478 717 1434 36971267 73942534 110913801 221827602 8836132813 17672265626 26508398439 53016796878