Search a number
-
+
3268868805 = 3659472
BaseRepresentation
bin1100001011010110…
…1111101011000101
322102210221202000000
43002311233223011
523143312300210
61300211111513
7144001632516
oct30265575305
98383852000
103268868805
111428211574
127728a2599
134013024c7
142301d4a0d
15141ea3ac0
hexc2d6fac5

3268868805 has 42 divisors (see below), whose sum is σ = 5887490406. Its totient is φ = 1741555728.

The previous prime is 3268868803. The next prime is 3268868821. The reversal of 3268868805 is 5088688623.

It can be written as a sum of positive squares in only one way, i.e., 2615095044 + 653773761 = 51138^2 + 25569^2 .

It is not a de Polignac number, because 3268868805 - 21 = 3268868803 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3268868803) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 3451342 + ... + 3452288.

It is an arithmetic number, because the mean of its divisors is an integer number (140178343).

Almost surely, 23268868805 is an apocalyptic number.

It is an amenable number.

3268868805 is a deficient number, since it is larger than the sum of its proper divisors (2618621601).

3268868805 is an frugal number, since it uses more digits than its factorization.

3268868805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The square root of 3268868805 is about 57174.0221166921. The cubic root of 3268868805 is about 1484.1091075092.

The spelling of 3268868805 in words is "three billion, two hundred sixty-eight million, eight hundred sixty-eight thousand, eight hundred five".

Divisors: 1 3 5 9 15 27 45 81 135 243 405 729 947 1215 2841 3645 4735 8523 14205 25569 42615 76707 127845 230121 383535 690363 896809 1150605 2690427 3451815 4484045 8071281 13452135 24213843 40356405 72641529 121069215 217924587 363207645 653773761 1089622935 3268868805