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7121412600212 = 221780353150053
BaseRepresentation
bin110011110100001010101…
…0001001011000110010100
3221012210121111012010002002
41213220111101023012110
51413134123111201322
623051310510534432
71333335146224451
oct147502521130624
927183544163062
107121412600212
1122a61a0837959
12970216807418
133c87143836c1
141a896d010828
15c539e6d7c92
hex67a1544b194

7121412600212 has 6 divisors (see below), whose sum is σ = 12462472050378. Its totient is φ = 3560706300104.

The previous prime is 7121412600161. The next prime is 7121412600221. The reversal of 7121412600212 is 2120062141217.

It can be written as a sum of positive squares in only one way, i.e., 6814835554576 + 306577045636 = 2610524^2 + 553694^2 .

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 as a sum of consecutive naturals, namely, 890176575023 + ... + 890176575030.

It is an arithmetic number, because the mean of its divisors is an integer number (2077078675063).

Almost surely, 27121412600212 is an apocalyptic number.

It is an amenable number.

7121412600212 is a deficient number, since it is larger than the sum of its proper divisors (5341059450166).

7121412600212 is a wasteful number, since it uses less digits than its factorization.

7121412600212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780353150057 (or 1780353150055 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 7121412600212 its reverse (2120062141217), we get a palindrome (9241474741429).

The spelling of 7121412600212 in words is "seven trillion, one hundred twenty-one billion, four hundred twelve million, six hundred thousand, two hundred twelve".

Divisors: 1 2 4 1780353150053 3560706300106 7121412600212