Search a number
-
+
1423110020 = 225397179233
BaseRepresentation
bin101010011010010…
…1110111110000100
310200011211110221112
41110310232332010
510403304010040
6353114104152
750160143543
oct12464567604
93604743845
101423110020
11670343692
1233871b058
13198ab0647
14d700a15a
1584e0c365
hex54d2ef84

1423110020 has 24 divisors (see below), whose sum is σ = 2996075544. Its totient is φ = 567806976.

The previous prime is 1423109977. The next prime is 1423110023. The reversal of 1423110020 is 200113241.

It can be written as a sum of positive squares in 4 ways, for example, as 365039236 + 1058070784 = 19106^2 + 32528^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1423109977 and 1423110004.

It is not an unprimeable number, because it can be changed into a prime (1423110023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81677 + ... + 97556.

It is an arithmetic number, because the mean of its divisors is an integer number (124836481).

Almost surely, 21423110020 is an apocalyptic number.

1423110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423110020 is an abundant number, since it is smaller than the sum of its proper divisors (1572965524).

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

1423110020 is a wasteful number, since it uses less digits than its factorization.

1423110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179639 (or 179637 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1423110020 is about 37724.1304737432. The cubic root of 1423110020 is about 1124.8108376602.

Adding to 1423110020 its reverse (200113241), we get a palindrome (1623223261).

The spelling of 1423110020 in words is "one billion, four hundred twenty-three million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 397 794 1588 1985 3970 7940 179233 358466 716932 896165 1792330 3584660 71155501 142311002 284622004 355777505 711555010 1423110020