Search a number
-
+
1153102391 = 7164728913
BaseRepresentation
bin100010010111010…
…1111001000110111
32222100202200002222
41010232233020313
54330143234031
6310230552555
740401131360
oct10456571067
92870680088
101153102391
11541994991
1228220875b
13154b8420c
14ad202b67
156b374e7b
hex44baf237

1153102391 has 4 divisors (see below), whose sum is σ = 1317831312. Its totient is φ = 988373472.

The previous prime is 1153102273. The next prime is 1153102393. The reversal of 1153102391 is 1932013511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1153102391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1153102391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153102393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82364450 + ... + 82364463.

It is an arithmetic number, because the mean of its divisors is an integer number (329457828).

Almost surely, 21153102391 is an apocalyptic number.

1153102391 is a deficient number, since it is larger than the sum of its proper divisors (164728921).

1153102391 is an equidigital number, since it uses as much as digits as its factorization.

1153102391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164728920.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 1153102391 is about 33957.3613668671. The cubic root of 1153102391 is about 1048.6308355377.

The spelling of 1153102391 in words is "one billion, one hundred fifty-three million, one hundred two thousand, three hundred ninety-one".

Divisors: 1 7 164728913 1153102391