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1405200313221 = 353349208312157
BaseRepresentation
bin10100011100101100011…
…101110010101110000101
311222100001211022002010020
4110130230131302232011
5141010322240010341
62553312355245353
7203344113405045
oct24345435625605
94870054262106
101405200313221
114a1a3aa41611
121a84068a9859
13a26820cc4a3
144c025131725
1526844983566
hex1472c772b85

1405200313221 has 32 divisors (see below), whose sum is σ = 1915497763200. Its totient is φ = 915975800064.

The previous prime is 1405200313219. The next prime is 1405200313229. The reversal of 1405200313221 is 1223130025041.

It is not a de Polignac number, because 1405200313221 - 21 = 1405200313219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1405200313191 and 1405200313200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405200313229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115581675 + ... + 115593831.

It is an arithmetic number, because the mean of its divisors is an integer number (59859305100).

Almost surely, 21405200313221 is an apocalyptic number.

It is an amenable number.

1405200313221 is a deficient number, since it is larger than the sum of its proper divisors (510297449979).

1405200313221 is a wasteful number, since it uses less digits than its factorization.

1405200313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14645.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1405200313221 its reverse (1223130025041), we get a palindrome (2628330338262).

The spelling of 1405200313221 in words is "one trillion, four hundred five billion, two hundred million, three hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 3 53 159 349 1047 2083 6249 12157 18497 36471 55491 110399 331197 644321 726967 1932963 2180901 4242793 12728379 25323031 38529251 75969093 115587753 224868029 674604087 1342120643 4026361929 8837737819 26513213457 468400104407 1405200313221