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102051213 = 31113212341
BaseRepresentation
bin1100001010100…
…10110110001101
321010000201221120
412011102312031
5202111114323
614043151153
72346264255
oct605226615
9233021846
10102051213
1152672650
122a2154b9
13181b1344
14d7a6965
158e5c5e3
hex6152d8d

102051213 has 16 divisors (see below), whose sum is σ = 148613952. Its totient is φ = 61776000.

The previous prime is 102051199. The next prime is 102051233. The reversal of 102051213 is 312150201.

It is not a de Polignac number, because 102051213 - 24 = 102051197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102051192 and 102051201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102051233) 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 15 ways as a sum of consecutive naturals, for example, 42423 + ... + 44763.

It is an arithmetic number, because the mean of its divisors is an integer number (9288372).

Almost surely, 2102051213 is an apocalyptic number.

It is an amenable number.

102051213 is a deficient number, since it is larger than the sum of its proper divisors (46562739).

102051213 is a wasteful number, since it uses less digits than its factorization.

102051213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 102051213 is about 10102.0400414966. The cubic root of 102051213 is about 467.3110571280.

The spelling of 102051213 in words is "one hundred two million, fifty-one thousand, two hundred thirteen".

Divisors: 1 3 11 33 1321 2341 3963 7023 14531 25751 43593 77253 3092461 9277383 34017071 102051213