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1914967168408 = 237181271886459
BaseRepresentation
bin11011110111011100111…
…100000001010110011000
320210001212100120102221001
4123313130330001112120
5222333323043342113
64023420200154344
7255231446235040
oct33673474012630
96701770512831
101914967168408
11679151052958
1226b1727689b4
1310b771846bc8
1468983548720
1534c2cc6e7dd
hex1bddcf01598

1914967168408 has 32 divisors (see below), whose sum is σ = 4103729625600. Its totient is φ = 820654504992.

The previous prime is 1914967168393. The next prime is 1914967168421. The reversal of 1914967168408 is 8048617694191.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1914967168408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71883 + ... + 1958341.

It is an arithmetic number, because the mean of its divisors is an integer number (128241550800).

Almost surely, 21914967168408 is an apocalyptic number.

It is an amenable number.

1914967168408 is an abundant number, since it is smaller than the sum of its proper divisors (2188762457192).

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

1914967168408 is a wasteful number, since it uses less digits than its factorization.

1914967168408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904599 (or 1904595 counting only the distinct ones).

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

The spelling of 1914967168408 in words is "one trillion, nine hundred fourteen billion, nine hundred sixty-seven million, one hundred sixty-eight thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 28 56 18127 36254 72508 126889 145016 253778 507556 1015112 1886459 3772918 7545836 13205213 15091672 26410426 52820852 105641704 34195842293 68391684586 136783369172 239370896051 273566738344 478741792102 957483584204 1914967168408