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13026790378 = 273972343791
BaseRepresentation
bin11000010000111010…
…10000101111101010
31020121212012111221201
430020131100233222
5203134324243003
65552345154414
7640546614460
oct141035205752
936555174851
1013026790378
115585313468
12263678ba0a
1312c7ac1ab4
148b8140830
15513994b1d
hex308750bea

13026790378 has 16 divisors (see below), whose sum is σ = 22387901184. Its totient is φ = 5568845040.

The previous prime is 13026790367. The next prime is 13026790397. The reversal of 13026790378 is 87309762031.

It is a happy 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, 1166338 + ... + 1177453.

It is an arithmetic number, because the mean of its divisors is an integer number (1399243824).

Almost surely, 213026790378 is an apocalyptic number.

13026790378 is a deficient number, since it is larger than the sum of its proper divisors (9361110806).

13026790378 is a wasteful number, since it uses less digits than its factorization.

13026790378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344197.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 13026790378 in words is "thirteen billion, twenty-six million, seven hundred ninety thousand, three hundred seventy-eight".

Divisors: 1 2 7 14 397 794 2779 5558 2343791 4687582 16406537 32813074 930485027 1860970054 6513395189 13026790378