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5197499089920 = 2103251919131081
BaseRepresentation
bin100101110100010001100…
…0101100100010000000000
3200101212122122111102020100
41023220203011210100000
51140123434231334140
615015410443242400
71044335605220124
oct113504305442000
920355578442210
105197499089920
111724279812a25
126bb387b19400
132b9178225997
1413d7bb65b584
15902eb33a530
hex4ba23164400

5197499089920 has 528 divisors, whose sum is σ = 19056916270080. Its totient is φ = 1306135756800.

The previous prime is 5197499089903. The next prime is 5197499089957. The reversal of 5197499089920 is 299809947915.

5197499089920 is a `hidden beast` number, since 51 + 9 + 7 + 499 + 0 + 89 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167208780 + ... + 167239860.

Almost surely, 25197499089920 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 5197499089920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9528458135040).

5197499089920 is an abundant number, since it is smaller than the sum of its proper divisors (13859417180160).

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

5197499089920 is a wasteful number, since it uses less digits than its factorization.

5197499089920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31322 (or 31301 counting only the distinct ones).

The product of its (nonzero) digits is 132269760, while the sum is 72.

The spelling of 5197499089920 in words is "five trillion, one hundred ninety-seven billion, four hundred ninety-nine million, eighty-nine thousand, nine hundred twenty".