Search a number
-
+
1230432541 = 132310339953
BaseRepresentation
bin100100101010110…
…1110100100011101
310011202021110010121
41021111232210131
510004442320131
6322032234541
742330334612
oct11125564435
93152243117
101230432541
115816021a8
122a409ba51
13167bbb2c0
14b95b2509
157304c911
hex4956e91d

1230432541 has 16 divisors (see below), whose sum is σ = 1396152576. Its totient is φ = 1075827456.

The previous prime is 1230432529. The next prime is 1230432569. The reversal of 1230432541 is 1452340321.

It is a cyclic number.

It is not a de Polignac number, because 1230432541 - 229 = 693561629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230432241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10821 + ... + 50773.

It is an arithmetic number, because the mean of its divisors is an integer number (87259536).

Almost surely, 21230432541 is an apocalyptic number.

It is an amenable number.

1230432541 is a deficient number, since it is larger than the sum of its proper divisors (165720035).

1230432541 is a wasteful number, since it uses less digits than its factorization.

1230432541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40092.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1230432541 is about 35077.5218765522. The cubic root of 1230432541 is about 1071.5668490849.

Adding to 1230432541 its reverse (1452340321), we get a palindrome (2682772862).

The spelling of 1230432541 in words is "one billion, two hundred thirty million, four hundred thirty-two thousand, five hundred forty-one".

Divisors: 1 13 23 103 299 1339 2369 30797 39953 519389 918919 4115159 11945947 53497067 94648657 1230432541