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53017028844 = 223131372480677
BaseRepresentation
bin110001011000000011…
…111010100011101100
312001211211220010010220
4301120003322203230
51332034324410334
640204454531340
73554545211133
oct613003724354
9161754803126
1053017028844
112053680451a
12a337366b50
134ccbb371b0
1427cd2ca91a
1515a469e449
hexc580fa8ec

53017028844 has 48 divisors (see below), whose sum is σ = 134194757088. Its totient is φ = 16193852928.

The previous prime is 53017028839. The next prime is 53017028851. The reversal of 53017028844 is 44882071035.

It is a junction number, because it is equal to n+sod(n) for n = 53017028796 and 53017028805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218967 + ... + 1261710.

It is an arithmetic number, because the mean of its divisors is an integer number (2795724106).

Almost surely, 253017028844 is an apocalyptic number.

It is an amenable number.

53017028844 is an abundant number, since it is smaller than the sum of its proper divisors (81177728244).

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

53017028844 is a wasteful number, since it uses less digits than its factorization.

53017028844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480834 (or 2480832 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

Adding to 53017028844 its reverse (44882071035), we get a palindrome (97899099879).

The spelling of 53017028844 in words is "fifty-three billion, seventeen million, twenty-eight thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 137 156 274 411 548 822 1644 1781 3562 5343 7124 10686 21372 2480677 4961354 7442031 9922708 14884062 29768124 32248801 64497602 96746403 128995204 193492806 339852749 386985612 679705498 1019558247 1359410996 2039116494 4078232988 4418085737 8836171474 13254257211 17672342948 26508514422 53017028844