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1378835148107 = 19611788166533
BaseRepresentation
bin10100000100001000111…
…110101010110101001011
311212211000101120220211102
4110010020332222311023
5140042323244214412
62533232250252015
7201421551244334
oct24041076526513
94784011526742
101378835148107
1149184054985a
121a328912700b
13a003cac3081
144aa4374328b
1525ceeeec8c2
hex14108faad4b

1378835148107 has 16 divisors (see below), whose sum is σ = 1475303625120. Its totient is φ = 1284759532800.

The previous prime is 1378835148091. The next prime is 1378835148121. The reversal of 1378835148107 is 7018415388731.

It is a cyclic number.

It is not a de Polignac number, because 1378835148107 - 24 = 1378835148091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378835148157) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 20690813 + ... + 20757345.

It is an arithmetic number, because the mean of its divisors is an integer number (92206476570).

Almost surely, 21378835148107 is an apocalyptic number.

1378835148107 is a deficient number, since it is larger than the sum of its proper divisors (96468477013).

1378835148107 is a wasteful number, since it uses less digits than its factorization.

1378835148107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84494.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The spelling of 1378835148107 in words is "one trillion, three hundred seventy-eight billion, eight hundred thirty-five million, one hundred forty-eight thousand, one hundred seven".

Divisors: 1 19 61 1159 17881 66533 339739 1090741 1264127 4058513 20724079 77111747 1189676573 22603854887 72570270953 1378835148107