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1307507423 = 9531371991
BaseRepresentation
bin100110111101110…
…1111101011011111
310101010022020222212
41031323233223133
510134210214143
6333424231035
744254425665
oct11573575337
93333266885
101307507423
11611065752
12305a6b47b
1317ab66141
14c5916c35
1579bc4918
hex4deefadf

1307507423 has 4 divisors (see below), whose sum is σ = 1308880368. Its totient is φ = 1306134480.

The previous prime is 1307507389. The next prime is 1307507447. The reversal of 1307507423 is 3247057031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1307507423 - 214 = 1307491039 is a prime.

It is a super-2 number, since 2×13075074232 = 3419151322400201858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1307507423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307507483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685043 + ... + 686948.

It is an arithmetic number, because the mean of its divisors is an integer number (327220092).

Almost surely, 21307507423 is an apocalyptic number.

1307507423 is a deficient number, since it is larger than the sum of its proper divisors (1372945).

1307507423 is an equidigital number, since it uses as much as digits as its factorization.

1307507423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372944.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 1307507423 is about 36159.4721062131. The cubic root of 1307507423 is about 1093.4897615285.

The spelling of 1307507423 in words is "one billion, three hundred seven million, five hundred seven thousand, four hundred twenty-three".

Divisors: 1 953 1371991 1307507423