Base | Representation |
---|---|
bin | 10111001000101… |
… | …001001110010100 |
3 | 1000001100122200121 |
4 | 113020221032110 |
5 | 1243331020342 |
6 | 102303121324 |
7 | 12422103151 |
oct | 2710511624 |
9 | 1001318617 |
10 | 388141972 |
11 | 18a106899 |
12 | a9ba3244 |
13 | 6254c10a |
14 | 39799228 |
15 | 24120067 |
hex | 17229394 |
388141972 has 12 divisors (see below), whose sum is σ = 684597760. Its totient is φ = 192542616.
The previous prime is 388141969. The next prime is 388142009. The reversal of 388141972 is 279141883.
It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381522 + ... + 382537.
Almost surely, 2388141972 is an apocalyptic number.
It is an amenable number.
388141972 is a deficient number, since it is larger than the sum of its proper divisors (296455788).
388141972 is a wasteful number, since it uses less digits than its factorization.
388141972 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 764190 (or 764188 counting only the distinct ones).
The product of its digits is 96768, while the sum is 43.
The square root of 388141972 is about 19701.3190421352. The cubic root of 388141972 is about 729.4522518941.
The spelling of 388141972 in words is "three hundred eighty-eight million, one hundred forty-one thousand, nine hundred seventy-two".
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