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1311430414220 = 2251921116356079
BaseRepresentation
bin10011000101010111010…
…110000000111110001100
311122101000211200122202222
4103011113112000332030
5132441302141223340
62442243545034512
7163514316411233
oct23052726007614
94571024618688
101311430414220
114661a1309613
121921b7485a38
139688a251a54
144768b699b1a
15241a76848b5
hex13157580f8c

1311430414220 has 48 divisors (see below), whose sum is σ = 2912690726400. Its totient is φ = 494607798720.

The previous prime is 1311430414171. The next prime is 1311430414223. The reversal of 1311430414220 is 224140341131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311430414220.

It is not an unprimeable number, because it can be changed into a prime (1311430414223) by changing a digit.

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, 8097860 + ... + 8258219.

It is an arithmetic number, because the mean of its divisors is an integer number (60681056800).

Almost surely, 21311430414220 is an apocalyptic number.

1311430414220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311430414220 is an abundant number, since it is smaller than the sum of its proper divisors (1601260312180).

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

1311430414220 is a wasteful number, since it uses less digits than its factorization.

1311430414220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16356318 (or 16356316 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1311430414220 its reverse (224140341131), we get a palindrome (1535570755351).

The spelling of 1311430414220 in words is "one trillion, three hundred eleven billion, four hundred thirty million, four hundred fourteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 211 380 422 844 1055 2110 4009 4220 8018 16036 20045 40090 80180 16356079 32712158 65424316 81780395 163560790 310765501 327121580 621531002 1243062004 1553827505 3107655010 3451132669 6215310020 6902265338 13804530676 17255663345 34511326690 65571520711 69022653380 131143041422 262286082844 327857603555 655715207110 1311430414220