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52809359208 = 2332399795957
BaseRepresentation
bin110001001011101011…
…101101111101101000
312001022101010101221220
4301023223231331220
51331123143443313
640132115502040
73546444101244
oct611353557550
9161271111856
1052809359208
112043a563221
12a2998b7920
134c97ac5c58
1427ad8ad424
15159132c823
hexc4baedf68

52809359208 has 64 divisors (see below), whose sum is σ = 137903160960. Its totient is φ = 16820702976.

The previous prime is 52809359201. The next prime is 52809359233. The reversal of 52809359208 is 80295390825.

It is not an unprimeable number, because it can be changed into a prime (52809359201) 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, 502366 + ... + 598322.

It is an arithmetic number, because the mean of its divisors is an integer number (2154736890).

Almost surely, 252809359208 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 52809359208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68951580480).

52809359208 is an abundant number, since it is smaller than the sum of its proper divisors (85093801752).

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

52809359208 is a wasteful number, since it uses less digits than its factorization.

52809359208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96986 (or 96982 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 52809359208 in words is "fifty-two billion, eight hundred nine million, three hundred fifty-nine thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 997 1994 2991 3988 5982 7976 11964 22931 23928 45862 68793 91724 95957 137586 183448 191914 275172 287871 383828 550344 575742 767656 1151484 2207011 2302968 4414022 6621033 8828044 13242066 17656088 26484132 52968264 95669129 191338258 287007387 382676516 574014774 765353032 1148029548 2200389967 2296059096 4400779934 6601169901 8801559868 13202339802 17603119736 26404679604 52809359208