Search a number
-
+
1293375893 = 3172757389
BaseRepresentation
bin100110100010111…
…0101100110010101
310100010201022011212
41031011311212111
510122101012033
6332201311205
744023341125
oct11505654625
93303638155
101293375893
116040934a7
12301195505
13177c58ba4
14c3ab8c85
1578832748
hex4d175995

1293375893 has 8 divisors (see below), whose sum is σ = 1336957440. Its totient is φ = 1249910640.

The previous prime is 1293375871. The next prime is 1293375911. The reversal of 1293375893 is 3985733921.

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

It is a cyclic number.

It is not a de Polignac number, because 1293375893 - 26 = 1293375829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293375833) 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, 6158 + ... + 51231.

It is an arithmetic number, because the mean of its divisors is an integer number (167119680).

Almost surely, 21293375893 is an apocalyptic number.

It is an amenable number.

1293375893 is a deficient number, since it is larger than the sum of its proper divisors (43581547).

1293375893 is an equidigital number, since it uses as much as digits as its factorization.

1293375893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58147.

The product of its digits is 1224720, while the sum is 50.

The square root of 1293375893 is about 35963.5356020511. The cubic root of 1293375893 is about 1089.5360068184.

The spelling of 1293375893 in words is "one billion, two hundred ninety-three million, three hundred seventy-five thousand, eight hundred ninety-three".

Divisors: 1 31 727 22537 57389 1779059 41721803 1293375893