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140120212 = 22191843687
BaseRepresentation
bin10000101101000…
…01000010010100
3100202122211210111
420112201002110
5241332321322
621523132404
73321000511
oct1026410224
9322584714
10140120212
1172104431
123ab14104
132304cc8b
1414876308
15c47c177
hex85a1094

140120212 has 12 divisors (see below), whose sum is σ = 258116320. Its totient is φ = 66372696.

The previous prime is 140120191. The next prime is 140120237. The reversal of 140120212 is 212021041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140120192 and 140120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921768 + ... + 921919.

Almost surely, 2140120212 is an apocalyptic number.

It is an amenable number.

140120212 is a deficient number, since it is larger than the sum of its proper divisors (117996108).

140120212 is a wasteful number, since it uses less digits than its factorization.

140120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843710 (or 1843708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 140120212 is about 11837.2383603609. The cubic root of 140120212 is about 519.3979867394.

Adding to 140120212 its reverse (212021041), we get a palindrome (352141253).

The spelling of 140120212 in words is "one hundred forty million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 1843687 3687374 7374748 35030053 70060106 140120212