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1420310223 = 32157812247
BaseRepresentation
bin101010010101000…
…0011011011001111
310122222120020100100
41110222003123033
510402044411343
6352534102143
750124303063
oct12452033317
93588506310
101420310223
11669801102
123377aa953
13198340167
14d68bbaa3
1584a579d3
hex54a836cf

1420310223 has 6 divisors (see below), whose sum is σ = 2051559224. Its totient is φ = 946873476.

The previous prime is 1420310209. The next prime is 1420310239. The reversal of 1420310223 is 3220130241.

1420310223 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1420310223 - 24 = 1420310207 is a prime.

It is a super-2 number, since 2×14203102232 = 4034562259116619458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420310196 and 1420310205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420310263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78906115 + ... + 78906132.

Almost surely, 21420310223 is an apocalyptic number.

1420310223 is a deficient number, since it is larger than the sum of its proper divisors (631249001).

1420310223 is a wasteful number, since it uses less digits than its factorization.

1420310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157812253 (or 157812250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1420310223 is about 37687.0033698621. The cubic root of 1420310223 is about 1124.0727102548.

Adding to 1420310223 its reverse (3220130241), we get a palindrome (4640440464).

The spelling of 1420310223 in words is "one billion, four hundred twenty million, three hundred ten thousand, two hundred twenty-three".

Divisors: 1 3 9 157812247 473436741 1420310223