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1310223023 = 8914721607
BaseRepresentation
bin100111000011000…
…0110101010101111
310101022102020002122
41032012012222233
510140404114043
6334002343155
744316466124
oct11606065257
93338366078
101310223023
1161264aa4a
1230695aabb
1317b5a71c5
14c602274b
157a05e368
hex4e186aaf

1310223023 has 4 divisors (see below), whose sum is σ = 1324944720. Its totient is φ = 1295501328.

The previous prime is 1310223011. The next prime is 1310223041. The reversal of 1310223023 is 3203220131.

Adding to 1310223023 its reverse (3203220131), we get a palindrome (4513443154).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3203220131 = 4397296629.

It is a cyclic number.

It is not a de Polignac number, because 1310223023 - 26 = 1310222959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310222992 and 1310223010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310223923) 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, 7360715 + ... + 7360892.

It is an arithmetic number, because the mean of its divisors is an integer number (331236180).

Almost surely, 21310223023 is an apocalyptic number.

1310223023 is a deficient number, since it is larger than the sum of its proper divisors (14721697).

1310223023 is an equidigital number, since it uses as much as digits as its factorization.

1310223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14721696.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1310223023 is about 36197.0029560460. The cubic root of 1310223023 is about 1094.2462715395.

The spelling of 1310223023 in words is "one billion, three hundred ten million, two hundred twenty-three thousand, twenty-three".

Divisors: 1 89 14721607 1310223023