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1214210143420 = 22560710507171
BaseRepresentation
bin10001101010110100100…
…100000111010010111100
311022002002101121012010121
4101222310210013102330
5124343200244042140
62325444521144324
7153503154633421
oct21526444072274
94262071535117
101214210143420
11428a41a7617a
121773a462b0a4
138a6655c2ab1
1442aa78a3d48
15218b74cd64a
hex11ab49074bc

1214210143420 has 12 divisors (see below), whose sum is σ = 2549841301224. Its totient is φ = 485684057360.

The previous prime is 1214210143417. The next prime is 1214210143463. The reversal of 1214210143420 is 243410124121.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30355253566 + ... + 30355253605.

It is an arithmetic number, because the mean of its divisors is an integer number (212486775102).

Almost surely, 21214210143420 is an apocalyptic number.

1214210143420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214210143420 is an abundant number, since it is smaller than the sum of its proper divisors (1335631157804).

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

1214210143420 is a wasteful number, since it uses less digits than its factorization.

1214210143420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60710507180 (or 60710507178 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1214210143420 its reverse (243410124121), we get a palindrome (1457620267541).

The spelling of 1214210143420 in words is "one trillion, two hundred fourteen billion, two hundred ten million, one hundred forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 60710507171 121421014342 242842028684 303552535855 607105071710 1214210143420