Base | Representation |
---|---|
bin | 100101010101100… |
… | …0011011000011110 |
3 | 10020022100211120010 |
4 | 1022223003120132 |
5 | 10031204100110 |
6 | 324151504050 |
7 | 43021424136 |
oct | 11253033036 |
9 | 3208324503 |
10 | 1252800030 |
11 | 59319a229 |
12 | 2ab688026 |
13 | 16c7201c1 |
14 | bc555ac6 |
15 | 74eba020 |
hex | 4aac361e |
1252800030 has 16 divisors (see below), whose sum is σ = 3006720144. Its totient is φ = 334080000.
The previous prime is 1252799987. The next prime is 1252800049. The reversal of 1252800030 is 300082521.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20879971 + ... + 20880030.
It is an arithmetic number, because the mean of its divisors is an integer number (187920009).
Almost surely, 21252800030 is an apocalyptic number.
1252800030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1252800030 is an abundant number, since it is smaller than the sum of its proper divisors (1753920114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1252800030 is a wasteful number, since it uses less digits than its factorization.
1252800030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41760011.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 1252800030 is about 35394.9153127960. The cubic root of 1252800030 is about 1078.0210760907.
Adding to 1252800030 its reverse (300082521), we get a palindrome (1552882551).
The spelling of 1252800030 in words is "one billion, two hundred fifty-two million, eight hundred thousand, thirty".
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