Base | Representation |
---|---|
bin | 10001101110011… |
… | …11111000110000 |
3 | 101100210210001002 |
4 | 20313033320300 |
5 | 301031410340 |
6 | 22431101132 |
7 | 3453635540 |
oct | 1067177060 |
9 | 340723032 |
10 | 148700720 |
11 | 76a35063 |
12 | 419717a8 |
13 | 24a656bc |
14 | 15a6b320 |
15 | d0c4715 |
hex | 8dcfe30 |
148700720 has 80 divisors (see below), whose sum is σ = 398331648. Its totient is φ = 50568960.
The previous prime is 148700701. The next prime is 148700729. The reversal of 148700720 is 27007841.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×1487007202 = 44223808257036800, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (148700729) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72347 + ... + 74373.
Almost surely, 2148700720 is an apocalyptic number.
148700720 is a gapful number since it is divisible by the number (10) 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 148700720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199165824).
148700720 is an abundant number, since it is smaller than the sum of its proper divisors (249630928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
148700720 is a wasteful number, since it uses less digits than its factorization.
148700720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2178 (or 2172 counting only the distinct ones).
The product of its (nonzero) digits is 3136, while the sum is 29.
The square root of 148700720 is about 12194.2904672638. The cubic root of 148700720 is about 529.7907326196.
The spelling of 148700720 in words is "one hundred forty-eight million, seven hundred thousand, seven hundred twenty".
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