Search a number
-
+
131000301222 = 23714143220537
BaseRepresentation
bin111101000000000111…
…0011111011010100110
3110112010122011210221020
41322000032133122212
54121242034114342
6140103011032010
712315211121310
oct1720016373246
9415118153836
10131000301222
115061428925a
122147b89b606
13c4791b8b4b
1464aa2947b0
15361aaa40ec
hex1e8039f6a6

131000301222 has 32 divisors (see below), whose sum is σ = 299451789312. Its totient is φ = 37425841344.

The previous prime is 131000301163. The next prime is 131000301269. The reversal of 131000301222 is 222103000131.

It is a super-2 number, since 2×1310003012222 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483738 + ... + 704274.

It is an arithmetic number, because the mean of its divisors is an integer number (9357868416).

Almost surely, 2131000301222 is an apocalyptic number.

131000301222 is an abundant number, since it is smaller than the sum of its proper divisors (168451488090).

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

131000301222 is a wasteful number, since it uses less digits than its factorization.

131000301222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234692.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 131000301222 its reverse (222103000131), we get a palindrome (353103301353).

The spelling of 131000301222 in words is "one hundred thirty-one billion, three hundred one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 14143 28286 42429 84858 99001 198002 220537 297003 441074 594006 661611 1323222 1543759 3087518 4631277 9262554 3119054791 6238109582 9357164373 18714328746 21833383537 43666767074 65500150611 131000301222