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508438815852 = 223114478985999
BaseRepresentation
bin1110110011000010101…
…00001010010001101100
31210121100222022222022210
413121201110022101230
531312240314101402
61025323520210420
751506405425122
oct7314124122154
91717328288283
10508438815852
1118669a502780
1282657169a10
1338c3a573036
141a873cb7912
15d35b90d06c
hex766150a46c

508438815852 has 48 divisors (see below), whose sum is σ = 1294251840000. Its totient is φ = 154067136960.

The previous prime is 508438815847. The next prime is 508438815853. The reversal of 508438815852 is 258518834805.

It is a junction number, because it is equal to n+sod(n) for n = 508438815792 and 508438815801.

It is not an unprimeable number, because it can be changed into a prime (508438815853) by changing a digit.

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, 5869149 + ... + 5955147.

It is an arithmetic number, because the mean of its divisors is an integer number (26963580000).

Almost surely, 2508438815852 is an apocalyptic number.

It is an amenable number.

508438815852 is an abundant number, since it is smaller than the sum of its proper divisors (785813024148).

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

508438815852 is a wasteful number, since it uses less digits than its factorization.

508438815852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130806 (or 130804 counting only the distinct ones).

The product of its (nonzero) digits is 12288000, while the sum is 57.

The spelling of 508438815852 in words is "five hundred eight billion, four hundred thirty-eight million, eight hundred fifteen thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 44789 85999 89578 134367 171998 179156 257997 268734 343996 492679 515994 537468 945989 985358 1031988 1478037 1891978 1970716 2837967 2956074 3783956 5675934 5912148 11351868 3851809211 7703618422 11555427633 15407236844 23110855266 42369901321 46221710532 84739802642 127109703963 169479605284 254219407926 508438815852