Search a number
-
+
1442423101 = 76710912819
BaseRepresentation
bin101010111111001…
…1010000100111101
310201112011200111211
41111332122010331
510423230014401
6355044044421
750513252110
oct12576320475
93645150454
101442423101
11680234909
12343093711
1319cab31c2
14d97d6577
1586974951
hex55f9a13d

1442423101 has 16 divisors (see below), whose sum is σ = 1675215360. Its totient is φ = 1216361520.

The previous prime is 1442423093. The next prime is 1442423107. The reversal of 1442423101 is 1013242441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1442423101 - 23 = 1442423093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442423107) 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, 510270 + ... + 513088.

It is an arithmetic number, because the mean of its divisors is an integer number (104700960).

Almost surely, 21442423101 is an apocalyptic number.

It is an amenable number.

1442423101 is a deficient number, since it is larger than the sum of its proper divisors (232792259).

1442423101 is a wasteful number, since it uses less digits than its factorization.

1442423101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1442423101 is about 37979.2456612819. The cubic root of 1442423101 is about 1129.8762756438.

Adding to 1442423101 its reverse (1013242441), we get a palindrome (2455665542).

The spelling of 1442423101 in words is "one billion, four hundred forty-two million, four hundred twenty-three thousand, one hundred one".

Divisors: 1 7 67 469 1091 2819 7637 19733 73097 188873 511679 1322111 3075529 21528703 206060443 1442423101