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13872016 = 24867001
BaseRepresentation
bin110100111010…
…101110010000
3222002202211101
4310322232100
512022401031
61213154144
7225624124
oct64725620
928082741
1013872016
117915284
12478b954
132b490c2
141bb1584
151340361
hexd3ab90

13872016 has 10 divisors (see below), whose sum is σ = 26877062. Its totient is φ = 6936000.

The previous prime is 13872007. The next prime is 13872029. The reversal of 13872016 is 61027831.

13872016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13660416 + 211600 = 3696^2 + 460^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433485 + ... + 433516.

Almost surely, 213872016 is an apocalyptic number.

13872016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13872016 is a deficient number, since it is larger than the sum of its proper divisors (13005046).

13872016 is an equidigital number, since it uses as much as digits as its factorization.

13872016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867009 (or 867003 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 13872016 is about 3724.5155389661. The cubic root of 13872016 is about 240.2775492733.

Adding to 13872016 its reverse (61027831), we get a palindrome (74899847).

It can be divided in two parts, 1387 and 2016, that added together give a triangular number (3403 = T82).

The spelling of 13872016 in words is "thirteen million, eight hundred seventy-two thousand, sixteen".

Divisors: 1 2 4 8 16 867001 1734002 3468004 6936008 13872016