Search a number
-
+
1301131230 = 23576195863
BaseRepresentation
bin100110110001101…
…1010111111011110
310100200022022111120
41031203122333132
510131042144410
6333035431410
744146301340
oct11543327736
93320268446
101301131230
11608500173
123038b5566
13179742b49
14c4b37290
1579365570
hex4d8dafde

1301131230 has 32 divisors (see below), whose sum is σ = 3568817664. Its totient is φ = 297401376.

The previous prime is 1301131199. The next prime is 1301131231. The reversal of 1301131230 is 321311031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301131231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3097722 + ... + 3098141.

It is an arithmetic number, because the mean of its divisors is an integer number (111525552).

Almost surely, 21301131230 is an apocalyptic number.

1301131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1301131230 is an abundant number, since it is smaller than the sum of its proper divisors (2267686434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301131230 is a wasteful number, since it uses less digits than its factorization.

1301131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195880.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1301131230 is about 36071.1966810085. The cubic root of 1301131230 is about 1091.7093595823.

Adding to 1301131230 its reverse (321311031), we get a palindrome (1622442261).

The spelling of 1301131230 in words is "one billion, three hundred one million, one hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 6195863 12391726 18587589 30979315 37175178 43371041 61958630 86742082 92937945 130113123 185875890 216855205 260226246 433710410 650565615 1301131230