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145030212 = 223210613797
BaseRepresentation
bin10001010010011…
…11110001000100
3101002220022001100
420221033301010
5244111431322
622220300100
73410510415
oct1051176104
9332808040
10145030212
1174958388
12406a1630
132407bac2
141539380c
15caebdac
hex8a4fc44

145030212 has 36 divisors (see below), whose sum is σ = 367046316. Its totient is φ = 48285120.

The previous prime is 145030199. The next prime is 145030241. The reversal of 145030212 is 212030541.

145030212 is a `hidden beast` number, since 1 + 450 + 3 + 0 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37161216 + 107868996 = 6096^2 + 10386^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36298 + ... + 40094.

It is an arithmetic number, because the mean of its divisors is an integer number (10195731).

Almost surely, 2145030212 is an apocalyptic number.

145030212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145030212 is an abundant number, since it is smaller than the sum of its proper divisors (222016104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145030212 is a wasteful number, since it uses less digits than its factorization.

145030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868 (or 4863 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 145030212 is about 12042.8489984721. The cubic root of 145030212 is about 525.3952723928.

Adding to 145030212 its reverse (212030541), we get a palindrome (357060753).

The spelling of 145030212 in words is "one hundred forty-five million, thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1061 2122 3183 3797 4244 6366 7594 9549 11391 12732 15188 19098 22782 34173 38196 45564 68346 136692 4028617 8057234 12085851 16114468 24171702 36257553 48343404 72515106 145030212