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105580138 = 2251210319
BaseRepresentation
bin1100100101100…
…00011001101010
321100200000201111
412102300121222
5204012031023
614250540534
72421262546
oct622603152
9240600644
10105580138
1154662a14
122b43774a
1318b48671
1410044a26
15940800d
hex64b066a

105580138 has 8 divisors (see below), whose sum is σ = 159001920. Its totient is φ = 52579500.

The previous prime is 105580109. The next prime is 105580147. The reversal of 105580138 is 831085501.

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

It is a super-2 number, since 2×1055801382 = 22294331080198088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104658 + ... + 105661.

It is an arithmetic number, because the mean of its divisors is an integer number (19875240).

Almost surely, 2105580138 is an apocalyptic number.

105580138 is a deficient number, since it is larger than the sum of its proper divisors (53421782).

105580138 is a wasteful number, since it uses less digits than its factorization.

105580138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210572.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 105580138 is about 10275.2196083587. The cubic root of 105580138 is about 472.6366641810.

The spelling of 105580138 in words is "one hundred five million, five hundred eighty thousand, one hundred thirty-eight".

Divisors: 1 2 251 502 210319 420638 52790069 105580138