Base | Representation |
---|---|
bin | 1100010111000110001… |
… | …0110100000010101100 |
3 | 202022010121200212020000 |
4 | 3011301202310002230 |
5 | 11434402214131342 |
6 | 241320040224300 |
7 | 21225303116640 |
oct | 3056142640254 |
9 | 668117625200 |
10 | 212358348972 |
11 | 8207382a750 |
12 | 351a646b090 |
13 | 170437a10c3 |
14 | a3c7540c20 |
15 | 57cd3cc44c |
hex | 31718b40ac |
212358348972 has 120 divisors (see below), whose sum is σ = 692130996480. Its totient is φ = 55158006240.
The previous prime is 212358348947. The next prime is 212358349001. The reversal of 212358348972 is 279843853212.
212358348972 is a `hidden beast` number, since 2 + 12 + 3 + 5 + 83 + 489 + 72 = 666.
It is a super-2 number, since 2×2123583489722 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4231072 + ... + 4280967.
It is an arithmetic number, because the mean of its divisors is an integer number (5767758304).
Almost surely, 2212358348972 is an apocalyptic number.
212358348972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
212358348972 is an abundant number, since it is smaller than the sum of its proper divisors (479772647508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212358348972 is a wasteful number, since it uses less digits than its factorization.
212358348972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8512073 (or 8512062 counting only the distinct ones).
The product of its digits is 5806080, while the sum is 54.
The spelling of 212358348972 in words is "two hundred twelve billion, three hundred fifty-eight million, three hundred forty-eight thousand, nine hundred seventy-two".
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