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1405112323 = 16321294049
BaseRepresentation
bin101001111000000…
…0101000000000011
310121220222002202011
41103300011000003
510334202043243
6351232233351
746551154246
oct12360050003
93556862664
101405112323
1166117075a
1233269b857
1319514b714
14d488325d
158355489d
hex53c05003

1405112323 has 8 divisors (see below), whose sum is σ = 1414746000. Its totient is φ = 1395491328.

The previous prime is 1405112311. The next prime is 1405112341. The reversal of 1405112323 is 3232115041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1405112323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1405112294 and 1405112303.

It is not an unprimeable number, because it can be changed into a prime (1405112393) 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, 345003 + ... + 349051.

It is an arithmetic number, because the mean of its divisors is an integer number (176843250).

Almost surely, 21405112323 is an apocalyptic number.

1405112323 is a deficient number, since it is larger than the sum of its proper divisors (9633677).

1405112323 is a wasteful number, since it uses less digits than its factorization.

1405112323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1405112323 is about 37484.8279041001. The cubic root of 1405112323 is about 1120.0489782472.

Adding to 1405112323 its reverse (3232115041), we get a palindrome (4637227364).

The spelling of 1405112323 in words is "one billion, four hundred five million, one hundred twelve thousand, three hundred twenty-three".

Divisors: 1 163 2129 4049 347027 659987 8620321 1405112323