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13872119242 = 2421143311497
BaseRepresentation
bin11001110101101011…
…11011110111001010
31022210202211200011011
430322311323313022
5211402230303432
610212303354134
71000523032222
oct147265736712
938722750134
1013872119242
1159794a4563
1228318b294a
131400c85ba7
14958509082
15562cc2847
hex33ad7bdca

13872119242 has 16 divisors (see below), whose sum is σ = 20873975112. Its totient is φ = 6914154240.

The previous prime is 13872119213. The next prime is 13872119249. The reversal of 13872119242 is 24291127831.

It can be written as a sum of positive squares in 4 ways, for example, as 10436869921 + 3435249321 = 102161^2 + 58611^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13872119195 and 13872119204.

It is not an unprimeable number, because it can be changed into a prime (13872119249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200838 + ... + 1212334.

Almost surely, 213872119242 is an apocalyptic number.

13872119242 is a deficient number, since it is larger than the sum of its proper divisors (7001855870).

13872119242 is a wasteful number, since it uses less digits than its factorization.

13872119242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13353.

The product of its digits is 48384, while the sum is 40.

The spelling of 13872119242 in words is "thirteen billion, eight hundred seventy-two million, one hundred nineteen thousand, two hundred forty-two".

Divisors: 1 2 421 842 1433 2866 11497 22994 603293 1206586 4840237 9680474 16475201 32950402 6936059621 13872119242