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78023011112 = 2330731768327
BaseRepresentation
bin100100010101010001…
…0001010101100101000
321110101120001122002022
41020222202022230220
52234242342323422
655502051524012
75431324436414
oct1105242125450
9243346048068
1078023011112
11300a8a57072
12131558b9608
1374856865c7
143ac238dd44
152069b54342
hex122a88ab28

78023011112 has 16 divisors (see below), whose sum is σ = 146769675360. Its totient is φ = 38884431024.

The previous prime is 78023011097. The next prime is 78023011117. The reversal of 78023011112 is 21111032087.

It is not an unprimeable number, because it can be changed into a prime (78023011117) 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, 15881708 + ... + 15886619.

It is an arithmetic number, because the mean of its divisors is an integer number (9173104710).

Almost surely, 278023011112 is an apocalyptic number.

It is an amenable number.

78023011112 is a deficient number, since it is larger than the sum of its proper divisors (68746664248).

78023011112 is a wasteful number, since it uses less digits than its factorization.

78023011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31768640 (or 31768636 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 78023011112 its reverse (21111032087), we get a palindrome (99134043199).

The spelling of 78023011112 in words is "seventy-eight billion, twenty-three million, eleven thousand, one hundred twelve".

Divisors: 1 2 4 8 307 614 1228 2456 31768327 63536654 127073308 254146616 9752876389 19505752778 39011505556 78023011112