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68062182197149 = 79723168885307
BaseRepresentation
bin11110111100110111101100…
…01100010100011110011101
322220222200101111112211022101
433132123312030110132131
532410112322120302044
6400431200154445101
720223221216053330
oct1736336614243635
9286880344484271
1068062182197149
111a761011522418
127772aa7133791
132bc930c039b3a
1412b43275d0617
157d06c0b1ccd4
hex3de6f631479d

68062182197149 has 4 divisors (see below), whose sum is σ = 77785351082464. Its totient is φ = 58339013311836.

The previous prime is 68062182197089. The next prime is 68062182197153. The reversal of 68062182197149 is 94179128126086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68062182197149 - 219 = 68062181672861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68062182191149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4861584442647 + ... + 4861584442660.

It is an arithmetic number, because the mean of its divisors is an integer number (19446337770616).

Almost surely, 268062182197149 is an apocalyptic number.

It is an amenable number.

68062182197149 is a deficient number, since it is larger than the sum of its proper divisors (9723168885315).

68062182197149 is an equidigital number, since it uses as much as digits as its factorization.

68062182197149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9723168885314.

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 68062182197149 in words is "sixty-eight trillion, sixty-two billion, one hundred eighty-two million, one hundred ninety-seven thousand, one hundred forty-nine".

Divisors: 1 7 9723168885307 68062182197149