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105447973 = 2912728631
BaseRepresentation
bin1100100100100…
…00001000100101
321100102022102111
412102100020211
5203443313343
614244041021
72420202331
oct622201045
9240368374
10105447973
1154582694
122b393171
1318b00467
141000c7c1
1593cdc9d
hex6490225

105447973 has 8 divisors (see below), whose sum is σ = 109946880. Its totient is φ = 101006640.

The previous prime is 105447961. The next prime is 105447977. The reversal of 105447973 is 379744501.

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 105447973 - 217 = 105316901 is a prime.

It is a super-2 number, since 2×1054479732 = 22238550019617458, which 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 (105447977) 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, 10633 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (13743360).

Almost surely, 2105447973 is an apocalyptic number.

It is an amenable number.

105447973 is a deficient number, since it is larger than the sum of its proper divisors (4498907).

105447973 is a wasteful number, since it uses less digits than its factorization.

105447973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28787.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 105447973 is about 10268.7863450361. The cubic root of 105447973 is about 472.4393666305.

The spelling of 105447973 in words is "one hundred five million, four hundred forty-seven thousand, nine hundred seventy-three".

Divisors: 1 29 127 3683 28631 830299 3636137 105447973