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105112471439 = 1014872136997
BaseRepresentation
bin110000111100100110…
…0010000011110001111
3101001022110122210121202
41201321030100132033
53210232243041224
6120142113020115
710410533160023
oct1417114203617
9331273583552
10105112471439
114063a282608
1218455b5463b
139bb1a5a581
14513203c383
152b02eaaeae
hex187931078f

105112471439 has 8 divisors (see below), whose sum is σ = 106371212448. Its totient is φ = 103858005600.

The previous prime is 105112471433. The next prime is 105112471463. The reversal of 105112471439 is 934174211501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105112471439 - 28 = 105112471183 is a prime.

It is a super-2 number, since 2×1051124714392 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105112471433) 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, 1019312 + ... + 1117685.

It is an arithmetic number, because the mean of its divisors is an integer number (13296401556).

Almost surely, 2105112471439 is an apocalyptic number.

105112471439 is a deficient number, since it is larger than the sum of its proper divisors (1258741009).

105112471439 is a wasteful number, since it uses less digits than its factorization.

105112471439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137585.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 105112471439 in words is "one hundred five billion, one hundred twelve million, four hundred seventy-one thousand, four hundred thirty-nine".

Divisors: 1 101 487 49187 2136997 215836697 1040717539 105112471439