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107478109 = 1994191289
BaseRepresentation
bin1100110011111…
…11110001011101
321111020110020201
412121333301131
5210003244414
614355343501
72443356154
oct631776135
9244213221
10107478109
1155739992
122bbb1b91
131936151b
14103ba59b
159680574
hex667fc5d

107478109 has 8 divisors (see below), whose sum is σ = 108360000. Its totient is φ = 106600032.

The previous prime is 107478101. The next prime is 107478127. The reversal of 107478109 is 901874701.

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 107478109 - 23 = 107478101 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107478101) 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, 82737 + ... + 84025.

It is an arithmetic number, because the mean of its divisors is an integer number (13545000).

Almost surely, 2107478109 is an apocalyptic number.

It is an amenable number.

107478109 is a deficient number, since it is larger than the sum of its proper divisors (881891).

107478109 is a wasteful number, since it uses less digits than its factorization.

107478109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 107478109 is about 10367.1649451526. The cubic root of 107478109 is about 475.4519930319.

The spelling of 107478109 in words is "one hundred seven million, four hundred seventy-eight thousand, one hundred nine".

Divisors: 1 199 419 1289 83381 256511 540091 107478109