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102184145 = 5712972251
BaseRepresentation
bin1100001011100…
…11010011010001
321010021111021222
412011303103101
5202124343040
614050054425
72350356650
oct605632321
9233244258
10102184145
1152753508
122a27a415
13182299bb
14d7dd197
158e86bb5
hex61734d1

102184145 has 16 divisors (see below), whose sum is σ = 140308608. Its totient is φ = 69984000.

The previous prime is 102184133. The next prime is 102184163. The reversal of 102184145 is 541481201.

It is not a de Polignac number, because 102184145 - 218 = 101922001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 44270 + ... + 46520.

It is an arithmetic number, because the mean of its divisors is an integer number (8769288).

Almost surely, 2102184145 is an apocalyptic number.

It is an amenable number.

102184145 is a deficient number, since it is larger than the sum of its proper divisors (38124463).

102184145 is a wasteful number, since it uses less digits than its factorization.

102184145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 102184145 is about 10108.6173634182. The cubic root of 102184145 is about 467.5138756879.

The spelling of 102184145 in words is "one hundred two million, one hundred eighty-four thousand, one hundred forty-five".

Divisors: 1 5 7 35 1297 2251 6485 9079 11255 15757 45395 78785 2919547 14597735 20436829 102184145