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1913568307068 = 2231121317884509
BaseRepresentation
bin11011110110001001100…
…011110010011101111100
320202221020212100220220210
4123312021203302131330
5222322441441311233
64023025305512420
7255152002144065
oct33661143623574
96687225326823
101913568307068
116785a3471700
1226aa421a2710
1310b5aaaa67c2
146888d85156c
1534b9a052163
hex1bd898f277c

1913568307068 has 36 divisors (see below), whose sum is σ = 4907801915240. Its totient is φ = 579869183520.

The previous prime is 1913568307039. The next prime is 1913568307069. The reversal of 1913568307068 is 8607038653191.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1913568306999 and 1913568307017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913568307069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 658940803 + ... + 658943706.

Almost surely, 21913568307068 is an apocalyptic number.

It is an amenable number.

1913568307068 is an abundant number, since it is smaller than the sum of its proper divisors (2994233608172).

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

1913568307068 is a wasteful number, since it uses less digits than its factorization.

1913568307068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317884538 (or 1317884525 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 1913568307068 in words is "one trillion, nine hundred thirteen billion, five hundred sixty-eight million, three hundred seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 1317884509 2635769018 3953653527 5271538036 7907307054 14496729599 15814614108 28993459198 43490188797 57986918396 86980377594 159464025589 173960755188 318928051178 478392076767 637856102356 956784153534 1913568307068