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19484316880 = 245724970489
BaseRepresentation
bin10010001001010110…
…110001010011010000
31212021220011211222221
4102021112301103100
5304400441120010
612541224310424
71256560650400
oct221126612320
955256154887
1019484316880
118299430726
123939312414
131ab68c12b2
14d2ba0a800
15790855dda
hex4895b14d0

19484316880 has 60 divisors (see below), whose sum is σ = 52697134980. Its totient is φ = 6680335872.

The previous prime is 19484316877. The next prime is 19484316911. The reversal of 19484316880 is 8861348491.

It can be written as a sum of positive squares in 2 ways, for example, as 11881872016 + 7602444864 = 109004^2 + 87192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2481325 + ... + 2489164.

It is an arithmetic number, because the mean of its divisors is an integer number (878285583).

Almost surely, 219484316880 is an apocalyptic number.

19484316880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19484316880 is an abundant number, since it is smaller than the sum of its proper divisors (33212818100).

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

19484316880 is a wasteful number, since it uses less digits than its factorization.

19484316880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970516 (or 4970503 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 19484316880 in words is "nineteen billion, four hundred eighty-four million, three hundred sixteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1960 3920 4970489 9940978 19881956 24852445 34793423 39763912 49704890 69586846 79527824 99409780 139173692 173967115 198819560 243553961 278347384 347934230 397639120 487107922 556694768 695868460 974215844 1217769805 1391736920 1948431688 2435539610 2783473840 3896863376 4871079220 9742158440 19484316880