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105138124750 = 2531273311437
BaseRepresentation
bin110000111101010111…
…0000111011111001110
3101001101020221010100101
41201322232013133032
53210310324443000
6120144430521314
710411264213021
oct1417256073716
9331336833311
10105138124750
114065280429a
121846266623a
139bb716cc49
1451355d91b8
152b05376e6a
hex187ab877ce

105138124750 has 32 divisors (see below), whose sum is σ = 198368381952. Its totient is φ = 41724093600.

The previous prime is 105138124717. The next prime is 105138124783. The reversal of 105138124750 is 57421831501.

It is an interprime number because it is at equal distance from previous prime (105138124717) and next prime (105138124783).

It is a super-2 number, since 2×1051381247502 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1623969 + ... + 1687468.

It is an arithmetic number, because the mean of its divisors is an integer number (6199011936).

Almost surely, 2105138124750 is an apocalyptic number.

105138124750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105138124750 is a deficient number, since it is larger than the sum of its proper divisors (93230257202).

105138124750 is a wasteful number, since it uses less digits than its factorization.

105138124750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311581 (or 3311571 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 105138124750 in words is "one hundred five billion, one hundred thirty-eight million, one hundred twenty-four thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 127 250 254 635 1270 3175 6350 15875 31750 3311437 6622874 16557185 33114370 82785925 165571850 413929625 420552499 827859250 841104998 2102762495 4205524990 10513812475 21027624950 52569062375 105138124750