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220400040013131 = 31131215444809397
BaseRepresentation
bin110010000111001111100010…
…000101111110110101001011
31001220101001000201221210220210
4302013033202011332311023
5212342013240220410011
62100430214113252203
764265243311341666
oct6207174205766513
91056331021853823
10220400040013131
116425414a852190
1220877007564063
1395c9833280754
143c5d5c149c6dd
151a7319e0c46a6
hexc873e217ed4b

220400040013131 has 16 divisors (see below), whose sum is σ = 330923227235328. Its totient is φ = 129266885637600.

The previous prime is 220400040013123. The next prime is 220400040013163. The reversal of 220400040013131 is 131310040004022.

It is not a de Polignac number, because 220400040013131 - 23 = 220400040013123 is a prime.

It is a super-2 number, since 2×2204000400131312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220400040013098 and 220400040013107.

It is not an unprimeable number, because it can be changed into a prime (220400040013631) 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, 107722403676 + ... + 107722405721.

It is an arithmetic number, because the mean of its divisors is an integer number (20682701702208).

Almost surely, 2220400040013131 is an apocalyptic number.

220400040013131 is a deficient number, since it is larger than the sum of its proper divisors (110523187222197).

220400040013131 is a wasteful number, since it uses less digits than its factorization.

220400040013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215444809442.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 220400040013131 its reverse (131310040004022), we get a palindrome (351710080017153).

The spelling of 220400040013131 in words is "two hundred twenty trillion, four hundred billion, forty million, thirteen thousand, one hundred thirty-one".

Divisors: 1 3 11 31 33 93 341 1023 215444809397 646334428191 2369892903367 6678789091307 7109678710101 20036367273921 73466680004377 220400040013131