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102205201 = 714600743
BaseRepresentation
bin1100001011110…
…00011100010001
321010022120011211
412011320130101
5202131031301
614050340121
72350505230
oct605703421
9233276154
10102205201
115276830a
122a28a641
1318236467
14d806b17
158e8d051
hex6178711

102205201 has 4 divisors (see below), whose sum is σ = 116805952. Its totient is φ = 87604452.

The previous prime is 102205189. The next prime is 102205247. The reversal of 102205201 is 102502201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102502201 = 103995167.

It is a cyclic number.

It is not a de Polignac number, because 102205201 - 29 = 102204689 is a prime.

It is a super-2 number, since 2×1022052012 = 20891806222900802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102205001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7300365 + ... + 7300378.

It is an arithmetic number, because the mean of its divisors is an integer number (29201488).

Almost surely, 2102205201 is an apocalyptic number.

It is an amenable number.

102205201 is a deficient number, since it is larger than the sum of its proper divisors (14600751).

102205201 is an equidigital number, since it uses as much as digits as its factorization.

102205201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14600750.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 102205201 is about 10109.6587974076. The cubic root of 102205201 is about 467.5459853533.

Adding to 102205201 its reverse (102502201), we get a palindrome (204707402).

The spelling of 102205201 in words is "one hundred two million, two hundred five thousand, two hundred one".

Divisors: 1 7 14600743 102205201