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145304204 = 22149243799
BaseRepresentation
bin10001010100100…
…10101010001100
3101010102012220012
420222102222030
5244144213304
622230212352
73413031263
oct1052225214
9333365805
10145304204
1175025221
12407b40b8
1324146726
14154255da
15cb5316e
hex8a92a8c

145304204 has 12 divisors (see below), whose sum is σ = 255990000. Its totient is φ = 72164208.

The previous prime is 145304189. The next prime is 145304209. The reversal of 145304204 is 402403541.

It is a super-2 number, since 2×1453042042 = 42226623400147232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145304204.

It is not an unprimeable number, because it can be changed into a prime (145304209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121304 + ... + 122495.

It is an arithmetic number, because the mean of its divisors is an integer number (21332500).

Almost surely, 2145304204 is an apocalyptic number.

It is an amenable number.

145304204 is a deficient number, since it is larger than the sum of its proper divisors (110685796).

145304204 is a wasteful number, since it uses less digits than its factorization.

145304204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243952 (or 243950 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 145304204 is about 12054.2193442794. The cubic root of 145304204 is about 525.7259242883.

Adding to 145304204 its reverse (402403541), we get a palindrome (547707745).

The spelling of 145304204 in words is "one hundred forty-five million, three hundred four thousand, two hundred four".

Divisors: 1 2 4 149 298 596 243799 487598 975196 36326051 72652102 145304204