Search a number
-
+
131303101331220 = 2235713131183573947
BaseRepresentation
bin11101110110101101100010…
…101101100111011100010100
3122012220110020220001200122020
4131312231202231213130110
5114202232222420044340
61143131451221533140
736441223153234140
oct3566554255473424
9565813226050566
10131303101331220
1138923372700475
1212887506b741b0
135835aa2052550
14245d1655aa220
15102a7658cb9d0
hex776b62b67714

131303101331220 has 192 divisors, whose sum is σ = 455944817534976. Its totient is φ = 27492034152960.

The previous prime is 131303101331177. The next prime is 131303101331267. The reversal of 131303101331220 is 22133101303131.

It is a super-2 number, since 2×1313031013312202 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91071714 + ... + 92502233.

It is an arithmetic number, because the mean of its divisors is an integer number (2374712591328).

Almost surely, 2131303101331220 is an apocalyptic number.

131303101331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131303101331220 is an abundant number, since it is smaller than the sum of its proper divisors (324641716203756).

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

131303101331220 is a wasteful number, since it uses less digits than its factorization.

131303101331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183574110 (or 183574108 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 131303101331220 its reverse (22133101303131), we get a palindrome (153436202634351).

The spelling of 131303101331220 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred one million, three hundred thirty-one thousand, two hundred twenty".