Search a number
-
+
131810046932 = 2232952511733
BaseRepresentation
bin111101011000001111…
…1011011001111010100
3110121020001212011020002
41322300133123033110
54124421333000212
6140315214430432
712344242625054
oct1726037331724
9417201764202
10131810046932
115099a376193
1221666b02418
13c577ba1915
146545a39564
153666c03ac2
hex1eb07db3d4

131810046932 has 6 divisors (see below), whose sum is σ = 230667582138. Its totient is φ = 65905023464.

The previous prime is 131810046931. The next prime is 131810046983. The reversal of 131810046932 is 239640018131.

It can be written as a sum of positive squares in only one way, i.e., 110939621776 + 20870425156 = 333076^2 + 144466^2 .

It is a super-2 number, since 2×1318100469322 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131810046931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16476255863 + ... + 16476255870.

It is an arithmetic number, because the mean of its divisors is an integer number (38444597023).

Almost surely, 2131810046932 is an apocalyptic number.

It is an amenable number.

131810046932 is a deficient number, since it is larger than the sum of its proper divisors (98857535206).

131810046932 is a wasteful number, since it uses less digits than its factorization.

131810046932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32952511737 (or 32952511735 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 131810046932 in words is "one hundred thirty-one billion, eight hundred ten million, forty-six thousand, nine hundred thirty-two".

Divisors: 1 2 4 32952511733 65905023466 131810046932