Base | Representation |
---|---|
bin | 11110010001001… |
… | …10010101100100 |
3 | 122200210002100201 |
4 | 33020212111210 |
5 | 1010000144140 |
6 | 41110120244 |
7 | 6202135306 |
oct | 1710462544 |
9 | 580702321 |
10 | 253912420 |
11 | 120366183 |
12 | 71050084 |
13 | 407b2448 |
14 | 25a17976 |
15 | 1745849a |
hex | f226564 |
253912420 has 24 divisors (see below), whose sum is σ = 545618304. Its totient is φ = 99202656.
The previous prime is 253912403. The next prime is 253912427. The reversal of 253912420 is 24219352.
It is not an unprimeable number, because it can be changed into a prime (253912427) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 146764 + ... + 148483.
It is an arithmetic number, because the mean of its divisors is an integer number (22734096).
Almost surely, 2253912420 is an apocalyptic number.
253912420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
253912420 is an abundant number, since it is smaller than the sum of its proper divisors (291705884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
253912420 is a wasteful number, since it uses less digits than its factorization.
253912420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 295299 (or 295297 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 253912420 is about 15934.6295846499. The cubic root of 253912420 is about 633.2297565305.
It can be divided in two parts, 253 and 912420, that added together give a cube (912673 = 973).
The spelling of 253912420 in words is "two hundred fifty-three million, nine hundred twelve thousand, four hundred twenty".
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