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102155371 = 2912727737
BaseRepresentation
bin1100001011011…
…00010001101011
321010020000211021
412011230101223
5202122432441
614045313311
72350210033
oct605542153
9233200737
10102155371
115273392a
122a265837
1318219886
14d7d28c3
158e7d3d1
hex616c46b

102155371 has 8 divisors (see below), whose sum is σ = 106513920. Its totient is φ = 97852608.

The previous prime is 102155341. The next prime is 102155377. The reversal of 102155371 is 173551201.

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 102155371 - 213 = 102147179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102155377) 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 7 ways as a sum of consecutive naturals, for example, 10186 + ... + 17551.

It is an arithmetic number, because the mean of its divisors is an integer number (13314240).

Almost surely, 2102155371 is an apocalyptic number.

102155371 is a deficient number, since it is larger than the sum of its proper divisors (4358549).

102155371 is a wasteful number, since it uses less digits than its factorization.

102155371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27893.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 102155371 is about 10107.1940220815. The cubic root of 102155371 is about 467.4699892085.

The spelling of 102155371 in words is "one hundred two million, one hundred fifty-five thousand, three hundred seventy-one".

Divisors: 1 29 127 3683 27737 804373 3522599 102155371