Search a number
-
+
1072805255 = 51032083117
BaseRepresentation
bin111111111100011…
…011010110000111
32202202200011010222
4333330123112013
54144114232010
6254241534555
735404460054
oct7774332607
92682604128
101072805255
11500630515
1225b34445b
1314134b812
14a26a002b
15642b3355
hex3ff1b587

1072805255 has 8 divisors (see below), whose sum is σ = 1299865632. Its totient is φ = 849911328.

The previous prime is 1072805249. The next prime is 1072805257. The reversal of 1072805255 is 5525082701.

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 1072805255 - 26 = 1072805191 is a prime.

It is a super-2 number, since 2×10728052552 = 2301822230311230050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072805257) 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, 1041044 + ... + 1042073.

It is an arithmetic number, because the mean of its divisors is an integer number (162483204).

Almost surely, 21072805255 is an apocalyptic number.

1072805255 is a deficient number, since it is larger than the sum of its proper divisors (227060377).

1072805255 is a wasteful number, since it uses less digits than its factorization.

1072805255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083225.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 1072805255 is about 32753.7059735231. The cubic root of 1072805255 is about 1023.7021861271.

Adding to 1072805255 its reverse (5525082701), we get a palindrome (6597887956).

The spelling of 1072805255 in words is "one billion, seventy-two million, eight hundred five thousand, two hundred fifty-five".

Divisors: 1 5 103 515 2083117 10415585 214561051 1072805255