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142724325 = 3521902991
BaseRepresentation
bin10001000000111…
…00110011100101
3100221120010222010
420200130303211
5243014134300
622055024433
73352064622
oct1040346345
9327503863
10142724325
1173622997
123b96b119
1323752383
1414d53349
15c7e3a50
hex881cce5

142724325 has 12 divisors (see below), whose sum is σ = 235971008. Its totient is φ = 76119600.

The previous prime is 142724317. The next prime is 142724327. The reversal of 142724325 is 523427241.

It is not a de Polignac number, because 142724325 - 23 = 142724317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142724292 and 142724301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142724327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 951421 + ... + 951570.

Almost surely, 2142724325 is an apocalyptic number.

142724325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142724325 is a deficient number, since it is larger than the sum of its proper divisors (93246683).

142724325 is a wasteful number, since it uses less digits than its factorization.

142724325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903004 (or 1902999 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 142724325 is about 11946.7286317217. The cubic root of 142724325 is about 522.5959012937.

It can be divided in two parts, 1427 and 24325, that added together give a palindrome (25752).

The spelling of 142724325 in words is "one hundred forty-two million, seven hundred twenty-four thousand, three hundred twenty-five".

Divisors: 1 3 5 15 25 75 1902991 5708973 9514955 28544865 47574775 142724325