Base | Representation |
---|---|
bin | 10001010101010… |
… | …11100110100010 |
3 | 101010121102001010 |
4 | 20222223212202 |
5 | 244211000440 |
6 | 22232321350 |
7 | 3413635164 |
oct | 1052534642 |
9 | 333542033 |
10 | 145406370 |
11 | 75094a5a |
12 | 40843256 |
13 | 24181095 |
14 | 15450934 |
15 | cb73580 |
hex | 8aab9a2 |
145406370 has 16 divisors (see below), whose sum is σ = 348975360. Its totient is φ = 38775024.
The previous prime is 145406369. The next prime is 145406383. The reversal of 145406370 is 73604541.
It is a super-2 number, since 2×1454063702 = 42286024873153800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4846879 = 145406370 / (1 + 4 + 5 + 4 + 0 + 6 + 3 + 7 + 0).
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 7 ways as a sum of consecutive naturals, for example, 2423410 + ... + 2423469.
It is an arithmetic number, because the mean of its divisors is an integer number (21810960).
Almost surely, 2145406370 is an apocalyptic number.
145406370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
145406370 is an abundant number, since it is smaller than the sum of its proper divisors (203568990).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145406370 is a wasteful number, since it uses less digits than its factorization.
145406370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4846889.
The product of its (nonzero) digits is 10080, while the sum is 30.
The square root of 145406370 is about 12058.4563688724. The cubic root of 145406370 is about 525.8491112064.
It can be divided in two parts, 14540 and 6370, that added together give a triangular number (20910 = T204).
The spelling of 145406370 in words is "one hundred forty-five million, four hundred six thousand, three hundred seventy".
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