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109517071 = 407926849
BaseRepresentation
bin1101000011100…
…01100100001111
321122002001011211
412201301210033
5211014021241
614511155251
72466610516
oct641614417
9248061154
10109517071
1156901884
1230815b27
13198c6601
141078b67d
159934781
hex687190f

109517071 has 4 divisors (see below), whose sum is σ = 109548000. Its totient is φ = 109486144.

The previous prime is 109517069. The next prime is 109517101. The reversal of 109517071 is 170715901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109517071 - 21 = 109517069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109517011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9346 + ... + 17503.

It is an arithmetic number, because the mean of its divisors is an integer number (27387000).

Almost surely, 2109517071 is an apocalyptic number.

109517071 is a deficient number, since it is larger than the sum of its proper divisors (30929).

109517071 is an equidigital number, since it uses as much as digits as its factorization.

109517071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30928.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 109517071 is about 10465.0404203711. The cubic root of 109517071 is about 478.4397705194.

The spelling of 109517071 in words is "one hundred nine million, five hundred seventeen thousand, seventy-one".

Divisors: 1 4079 26849 109517071