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102246385 = 5234718917
BaseRepresentation
bin1100001100000…
…10011111110001
321010101122200011
412012002133301
5202133341020
614051254521
72351036263
oct606023761
9233348604
10102246385
115279624a
122a2aa441
131824c127
14d817b33
158e9a35a
hex61827f1

102246385 has 16 divisors (see below), whose sum is σ = 130761216. Its totient is φ = 76571968.

The previous prime is 102246383. The next prime is 102246409. The reversal of 102246385 is 583642201.

It is not a de Polignac number, because 102246385 - 21 = 102246383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102246383) 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, 4054 + ... + 14863.

It is an arithmetic number, because the mean of its divisors is an integer number (8172576).

Almost surely, 2102246385 is an apocalyptic number.

It is an amenable number.

102246385 is a deficient number, since it is larger than the sum of its proper divisors (28514831).

102246385 is a wasteful number, since it uses less digits than its factorization.

102246385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18992.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 102246385 is about 10111.6954562526. The cubic root of 102246385 is about 467.6087767700.

Adding to 102246385 its reverse (583642201), we get a palindrome (685888586).

The spelling of 102246385 in words is "one hundred two million, two hundred forty-six thousand, three hundred eighty-five".

Divisors: 1 5 23 47 115 235 1081 5405 18917 94585 435091 889099 2175455 4445495 20449277 102246385