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1230525141 = 3410175047
BaseRepresentation
bin100100101011000…
…0101001011010101
310011202110011011020
41021112011023111
510010003301031
6322034231353
742331201566
oct11126051325
93152404136
101230525141
1158166582a
122a4125559
13167c214b1
14b95d816d
157306a096
hex495852d5

1230525141 has 4 divisors (see below), whose sum is σ = 1640700192. Its totient is φ = 820350092.

The previous prime is 1230525113. The next prime is 1230525143. The reversal of 1230525141 is 1415250321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1230525141 - 26 = 1230525077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230525143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205087521 + ... + 205087526.

It is an arithmetic number, because the mean of its divisors is an integer number (410175048).

Almost surely, 21230525141 is an apocalyptic number.

It is an amenable number.

1230525141 is a deficient number, since it is larger than the sum of its proper divisors (410175051).

1230525141 is an equidigital number, since it uses as much as digits as its factorization.

1230525141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410175050.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1230525141 is about 35078.8417853269. The cubic root of 1230525141 is about 1071.5937297678.

Adding to 1230525141 its reverse (1415250321), we get a palindrome (2645775462).

The spelling of 1230525141 in words is "one billion, two hundred thirty million, five hundred twenty-five thousand, one hundred forty-one".

Divisors: 1 3 410175047 1230525141