Base | Representation |
---|---|
bin | 10001101101100… |
… | …00101100111110 |
3 | 101100120021211100 |
4 | 20312300230332 |
5 | 301013313430 |
6 | 22424233530 |
7 | 3452564256 |
oct | 1066605476 |
9 | 340507740 |
10 | 148572990 |
11 | 769580a5 |
12 | 4190b8a6 |
13 | 24a1c517 |
14 | 15a36966 |
15 | d09b960 |
hex | 8db0b3e |
148572990 has 48 divisors (see below), whose sum is σ = 387015408. Its totient is φ = 39545088.
The previous prime is 148572973. The next prime is 148573001. The reversal of 148572990 is 99275841.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60262 + ... + 62678.
It is an arithmetic number, because the mean of its divisors is an integer number (8062821).
Almost surely, 2148572990 is an apocalyptic number.
148572990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
148572990 is an abundant number, since it is smaller than the sum of its proper divisors (238442418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
148572990 is a wasteful number, since it uses less digits than its factorization.
148572990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3113 (or 3110 counting only the distinct ones).
The product of its (nonzero) digits is 181440, while the sum is 45.
The square root of 148572990 is about 12189.0520550205. The cubic root of 148572990 is about 529.6389970729.
The spelling of 148572990 in words is "one hundred forty-eight million, five hundred seventy-two thousand, nine hundred ninety".
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