| Base | Representation |
|---|---|
| bin | 100111100110010011… |
| … | …111010111110000000 |
| 3 | 11001202012102010101000 |
| 4 | 213212103322332000 |
| 5 | 1144034241000431 |
| 6 | 31311031012000 |
| 7 | 3033436611246 |
| oct | 474623727600 |
| 9 | 131665363330 |
| 10 | 42518687616 |
| 11 | 17039766359 |
| 12 | 82a750a000 |
| 13 | 4017b25972 |
| 14 | 20b4cc4796 |
| 15 | 118cba49e6 |
| hex | 9e64faf80 |
42518687616 has 512 divisors, whose sum is σ = 141004800000. Its totient is φ = 12548929536.
The previous prime is 42518687609. The next prime is 42518687623. The reversal of 42518687616 is 61678681524.
42518687616 is a `hidden beast` number, since 4 + 2 + 5 + 18 + 6 + 8 + 7 + 616 = 666.
It is an interprime number because it is at equal distance from previous prime (42518687609) and next prime (42518687623).
It is a hoax number, since the sum of its digits (54) 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 (54).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70982485 + ... + 70983083.
It is an arithmetic number, because the mean of its divisors is an integer number (275400000).
Almost surely, 242518687616 is an apocalyptic number.
42518687616 is a gapful number since it is divisible by the number (46) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 42518687616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70502400000).
42518687616 is an abundant number, since it is smaller than the sum of its proper divisors (98486112384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42518687616 is a wasteful number, since it uses less digits than its factorization.
42518687616 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 711 (or 693 counting only the distinct ones).
The product of its digits is 3870720, while the sum is 54.
The spelling of 42518687616 in words is "forty-two billion, five hundred eighteen million, six hundred eighty-seven thousand, six hundred sixteen".
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