| Base | Representation |
|---|---|
| bin | 1000111111000101111010… |
| … | …1101000011011111001110 |
| 3 | 1021222112001010202010102200 |
| 4 | 2033301132231003133032 |
| 5 | 2243333231443243440 |
| 6 | 33002452101102330 |
| 7 | 2036543643242400 |
| oct | 217613655033716 |
| 9 | 37875033663380 |
| 10 | 9880013649870 |
| 11 | 316a0aa152291 |
| 12 | 11369906b79a6 |
| 13 | 5688b1a40100 |
| 14 | 2622a393ab70 |
| 15 | 122006286c30 |
| hex | 8fc5eb437ce |
9880013649870 has 432 divisors, whose sum is σ = 32393256873120. Its totient is φ = 2082266694144.
The previous prime is 9880013649841. The next prime is 9880013649937. The reversal of 9880013649870 is 789463100889.
9880013649870 is a `hidden beast` number, since 9 + 8 + 8 + 0 + 0 + 136 + 498 + 7 + 0 = 666.
It is a super-2 number, since 2×98800136498702 (a number of 27 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a junction number, because it is equal to n+sod(n) for n = 9880013649798 and 9880013649807.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 720688576 + ... + 720702284.
It is an arithmetic number, because the mean of its divisors is an integer number (74984390910).
Almost surely, 29880013649870 is an apocalyptic number.
9880013649870 is a gapful number since it is divisible by the number (90) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 9880013649870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16196628436560).
9880013649870 is an abundant number, since it is smaller than the sum of its proper divisors (22513243223250).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9880013649870 is a wasteful number, since it uses less digits than its factorization.
9880013649870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14729 (or 14706 counting only the distinct ones).
The product of its (nonzero) digits is 20901888, while the sum is 63.
The spelling of 9880013649870 in words is "nine trillion, eight hundred eighty billion, thirteen million, six hundred forty-nine thousand, eight hundred seventy".
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