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20380503048 = 23317317832753
BaseRepresentation
bin10010111110110001…
…011100110000001000
31221121100111211022020
4102332301130300020
5313214402044143
613210200524440
71321022263143
oct227661346010
957540454266
1020380503048
118709298654
123b49480720
131bca480a79
14db4a5305a
157e437c883
hex4bec5cc08

20380503048 has 64 divisors (see below), whose sum is σ = 51293139840. Its totient is φ = 6747992064.

The previous prime is 20380503019. The next prime is 20380503079. The reversal of 20380503048 is 84030508302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7401640 + ... + 7404392.

It is an arithmetic number, because the mean of its divisors is an integer number (801455310).

Almost surely, 220380503048 is an apocalyptic number.

It is an amenable number.

20380503048 is an abundant number, since it is smaller than the sum of its proper divisors (30912636792).

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

20380503048 is a wasteful number, since it uses less digits than its factorization.

20380503048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718 (or 4714 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 20380503048 in words is "twenty billion, three hundred eighty million, five hundred three thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 173 346 519 692 1038 1384 1783 2076 2753 3566 4152 5349 5506 7132 8259 10698 11012 14264 16518 21396 22024 33036 42792 66072 308459 476269 616918 925377 952538 1233836 1428807 1850754 1905076 2467672 2857614 3701508 3810152 4908599 5715228 7403016 9817198 11430456 14725797 19634396 29451594 39268792 58903188 117806376 849187627 1698375254 2547562881 3396750508 5095125762 6793501016 10190251524 20380503048