Search a number
-
+
145512636 = 22331391163
BaseRepresentation
bin10001010110001…
…01100010111100
3101010210210210220
420223011202330
5244222401021
622234501340
73414560043
oct1053054274
9333723726
10145512636
1175157885
1240894850
13241ba569
141547b55a
15cb94cc6
hex8ac58bc

145512636 has 24 divisors (see below), whose sum is σ = 350482944. Its totient is φ = 46939440.

The previous prime is 145512623. The next prime is 145512641. The reversal of 145512636 is 636215541.

It is a junction number, because it is equal to n+sod(n) for n = 145512597 and 145512606.

It is a congruent number.

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, 195210 + ... + 195953.

It is an arithmetic number, because the mean of its divisors is an integer number (14603456).

Almost surely, 2145512636 is an apocalyptic number.

It is an amenable number.

145512636 is an abundant number, since it is smaller than the sum of its proper divisors (204970308).

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

145512636 is a wasteful number, since it uses less digits than its factorization.

145512636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391201 (or 391199 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 145512636 is about 12062.8618494949. The cubic root of 145512636 is about 525.9771805027.

The spelling of 145512636 in words is "one hundred forty-five million, five hundred twelve thousand, six hundred thirty-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 391163 782326 1173489 1564652 2346978 4693956 12126053 24252106 36378159 48504212 72756318 145512636