Search a number
-
+
1307842943 = 111181100673
BaseRepresentation
bin100110111110100…
…0001100101111111
310101010221022020112
41031331001211333
510134301433233
6333435340235
744260324121
oct11575014577
93333838215
101307842943
11611274840
12305bb167b
1317ac52a84
14c59a3211
1579c3e048
hex4df4197f

1307842943 has 8 divisors (see below), whose sum is σ = 1427960016. Its totient is φ = 1187929600.

The previous prime is 1307842937. The next prime is 1307842993. The reversal of 1307842943 is 3492487031.

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

It is not a de Polignac number, because 1307842943 - 28 = 1307842687 is a prime.

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 1307842943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307842993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37346 + ... + 63327.

It is an arithmetic number, because the mean of its divisors is an integer number (178495002).

Almost surely, 21307842943 is an apocalyptic number.

1307842943 is a deficient number, since it is larger than the sum of its proper divisors (120117073).

1307842943 is a wasteful number, since it uses less digits than its factorization.

1307842943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101865.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1307842943 is about 36164.1112568801. Note that the first 3 decimals coincide. The cubic root of 1307842943 is about 1093.5832871433.

The spelling of 1307842943 in words is "one billion, three hundred seven million, eight hundred forty-two thousand, nine hundred forty-three".

Divisors: 1 11 1181 12991 100673 1107403 118894813 1307842943