Base | Representation |
---|---|
bin | 11100010110110110… |
… | …100110111100000010 |
3 | 2220120222122001201220 |
4 | 130112312212330002 |
5 | 444324213410330 |
6 | 21553202135510 |
7 | 2125351205631 |
oct | 342666467402 |
9 | 86528561656 |
10 | 30448185090 |
11 | 11a05230134 |
12 | 5a99051596 |
13 | 2b431a798b |
14 | 168bb93518 |
15 | bd3159710 |
hex | 716da6f02 |
30448185090 has 32 divisors (see below), whose sum is σ = 73096995456. Its totient is φ = 8117143680.
The previous prime is 30448185073. The next prime is 30448185107. The reversal of 30448185090 is 9058184403.
It is an interprime number because it is at equal distance from previous prime (30448185073) and next prime (30448185107).
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, 42651 + ... + 250430.
It is an arithmetic number, because the mean of its divisors is an integer number (2284281108).
Almost surely, 230448185090 is an apocalyptic number.
30448185090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30448185090 is an abundant number, since it is smaller than the sum of its proper divisors (42648810366).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30448185090 is a wasteful number, since it uses less digits than its factorization.
30448185090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 296554.
The product of its (nonzero) digits is 138240, while the sum is 42.
The spelling of 30448185090 in words is "thirty billion, four hundred forty-eight million, one hundred eighty-five thousand, ninety".
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