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102212203 = 871311731
BaseRepresentation
bin1100001011110…
…10001001101011
321010022220210011
412011322021223
5202131242303
614050432351
72350534522
oct605721153
9233286704
10102212203
11527725a5
122a2926b7
13182396c2
14d8094b9
158e9016d
hex617a26b

102212203 has 4 divisors (see below), whose sum is σ = 102232648. Its totient is φ = 102191760.

The previous prime is 102212141. The next prime is 102212213. The reversal of 102212203 is 302212201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102212203 - 29 = 102211691 is a prime.

It is a super-2 number, since 2×1022122032 = 20894668884226418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102212213) 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, 2848 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (25558162).

Almost surely, 2102212203 is an apocalyptic number.

102212203 is a deficient number, since it is larger than the sum of its proper divisors (20445).

102212203 is an equidigital number, since it uses as much as digits as its factorization.

102212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20444.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102212203 is about 10110.0050939651. The cubic root of 102212203 is about 467.5566621819.

Adding to 102212203 its reverse (302212201), we get a palindrome (404424404).

It can be divided in two parts, 1022 and 12203, that added together give a square (13225 = 1152).

The spelling of 102212203 in words is "one hundred two million, two hundred twelve thousand, two hundred three".

Divisors: 1 8713 11731 102212203