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109184121 = 3212131569
BaseRepresentation
bin1101000001000…
…00010001111001
321121110010110100
412200200101321
5210422342441
614500110013
72464023024
oct640402171
9247403410
10109184121
11566a4712
1230695309
131980abb7
14107021bb
1598bacb6
hex6820479

109184121 has 6 divisors (see below), whose sum is σ = 157710410. Its totient is φ = 72789408.

The previous prime is 109184113. The next prime is 109184123. The reversal of 109184121 is 121481901.

It can be written as a sum of positive squares in only one way, i.e., 65028096 + 44156025 = 8064^2 + 6645^2 .

It is not a de Polignac number, because 109184121 - 23 = 109184113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109184123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6065776 + ... + 6065793.

Almost surely, 2109184121 is an apocalyptic number.

It is an amenable number.

109184121 is a deficient number, since it is larger than the sum of its proper divisors (48526289).

109184121 is a wasteful number, since it uses less digits than its factorization.

109184121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12131575 (or 12131572 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 109184121 is about 10449.1205850062. The cubic root of 109184121 is about 477.9544330203.

The spelling of 109184121 in words is "one hundred nine million, one hundred eighty-four thousand, one hundred twenty-one".

Divisors: 1 3 9 12131569 36394707 109184121