Base | Representation |
---|---|
bin | 11100000100111001… |
… | …011010101101100000 |
3 | 2212210222202210120110 |
4 | 130010321122231200 |
5 | 443220103302202 |
6 | 21503241211320 |
7 | 2115032455503 |
oct | 340471325540 |
9 | 85728683513 |
10 | 30146931552 |
11 | 1187017a971 |
12 | 5a14190b40 |
13 | 2ac595b44a |
14 | 165db7513a |
15 | bb699e26c |
hex | 704e5ab60 |
30146931552 has 96 divisors (see below), whose sum is σ = 84237148800. Its totient is φ = 9413065728.
The previous prime is 30146931541. The next prime is 30146931599. The reversal of 30146931552 is 25513964103.
It is a tau number, because it is divible by the number of its divisors (96).
It is a self number, because there is not a number n which added to its sum of digits gives 30146931552.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69483 + ... + 255189.
It is an arithmetic number, because the mean of its divisors is an integer number (877470300).
Almost surely, 230146931552 is an apocalyptic number.
30146931552 is a gapful number since it is divisible by the number (32) 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 30146931552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42118574400).
30146931552 is an abundant number, since it is smaller than the sum of its proper divisors (54090217248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30146931552 is a wasteful number, since it uses less digits than its factorization.
30146931552 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 185828 (or 185820 counting only the distinct ones).
The product of its (nonzero) digits is 97200, while the sum is 39.
The spelling of 30146931552 in words is "thirty billion, one hundred forty-six million, nine hundred thirty-one thousand, five hundred fifty-two".
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