Search a number
-
+
1155108071 = 1326834959
BaseRepresentation
bin100010011011001…
…1000110011100111
32222111112120101102
41010312120303213
54331201424241
6310341550315
740424154005
oct10466306347
92874476342
101155108071
11543034877
12282a1539b
13155407100
14ad5a5a75
156b61e39b
hex44d98ce7

1155108071 has 6 divisors (see below), whose sum is σ = 1250797680. Its totient is φ = 1066253448.

The previous prime is 1155108043. The next prime is 1155108091. The reversal of 1155108071 is 1708015511.

It is a happy number.

It is not a de Polignac number, because 1155108071 - 210 = 1155107047 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 (1155108091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3417311 + ... + 3417648.

It is an arithmetic number, because the mean of its divisors is an integer number (208466280).

Almost surely, 21155108071 is an apocalyptic number.

1155108071 is a deficient number, since it is larger than the sum of its proper divisors (95689609).

1155108071 is an equidigital number, since it uses as much as digits as its factorization.

1155108071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834985 (or 6834972 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 29.

The square root of 1155108071 is about 33986.8808660048. The cubic root of 1155108071 is about 1049.2384715574.

The spelling of 1155108071 in words is "one billion, one hundred fifty-five million, one hundred eight thousand, seventy-one".

Divisors: 1 13 169 6834959 88854467 1155108071