Search a number
-
+
145615030 = 25112177079
BaseRepresentation
bin10001010110111…
…10100010110110
3101011000000021021
420223132202312
5244234140110
622241011354
73415464421
oct1053364266
9334000237
10145615030
1175217800
1240923b5a
1324225052
14154a69b8
15cbb52da
hex8ade8b6

145615030 has 48 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 49829120.

The previous prime is 145615007. The next prime is 145615037. The reversal of 145615030 is 30516541.

It is a junction number, because it is equal to n+sod(n) for n = 145614986 and 145615004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145615037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17031 + ... + 24109.

It is an arithmetic number, because the mean of its divisors is an integer number (6356070).

Almost surely, 2145615030 is an apocalyptic number.

145615030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145615030 is an abundant number, since it is smaller than the sum of its proper divisors (159476330).

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

145615030 is a wasteful number, since it uses less digits than its factorization.

145615030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125 (or 7114 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 145615030 is about 12067.1052866874. The cubic root of 145615030 is about 526.1005243836.

It can be divided in two parts, 14561 and 5030, that added together give a palindrome (19591).

The spelling of 145615030 in words is "one hundred forty-five million, six hundred fifteen thousand, thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 121 170 187 242 374 605 935 1210 1870 2057 4114 7079 10285 14158 20570 35395 70790 77869 120343 155738 240686 389345 601715 778690 856559 1203430 1323773 1713118 2647546 4282795 6618865 8565590 13237730 14561503 29123006 72807515 145615030