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11212124142 = 231868687357
BaseRepresentation
bin10100111000100101…
…10110111111101110
31001221101120220212010
422130102312333232
5140430300433032
65052322422050
7544563324402
oct123422667756
931841526763
1011212124142
114833a518aa
12220ab01926
131098b682ab
1478512b102
154594e0ccc
hex29c4b6fee

11212124142 has 8 divisors (see below), whose sum is σ = 22424248296. Its totient is φ = 3737374712.

The previous prime is 11212124137. The next prime is 11212124153. The reversal of 11212124142 is 24142121211.

It is a sphenic number, since it is the product of 3 distinct primes.

11212124142 is an admirable number.

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, 934343673 + ... + 934343684.

It is an arithmetic number, because the mean of its divisors is an integer number (2803031037).

Almost surely, 211212124142 is an apocalyptic number.

11212124142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11212124142 is a wasteful number, since it uses less digits than its factorization.

11212124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868687362.

The product of its digits is 256, while the sum is 21.

Adding to 11212124142 its reverse (24142121211), we get a palindrome (35354245353).

The spelling of 11212124142 in words is "eleven billion, two hundred twelve million, one hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 1868687357 3737374714 5606062071 11212124142