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133102223 = 1271048049
BaseRepresentation
bin1111110111011…
…11101010001111
3100021110021220222
413323233222033
5233033232343
621112501555
73204231062
oct773575217
9307407828
10133102223
1169150741
12386aa8bb
1321763817
141396a8d9
15ba42a68
hex7eefa8f

133102223 has 4 divisors (see below), whose sum is σ = 134150400. Its totient is φ = 132054048.

The previous prime is 133102217. The next prime is 133102241. The reversal of 133102223 is 322201331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322201331 = 701459631.

It is a cyclic number.

It is not a de Polignac number, because 133102223 - 226 = 65993359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133102253) 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, 523898 + ... + 524151.

It is an arithmetic number, because the mean of its divisors is an integer number (33537600).

Almost surely, 2133102223 is an apocalyptic number.

133102223 is a deficient number, since it is larger than the sum of its proper divisors (1048177).

133102223 is a wasteful number, since it uses less digits than its factorization.

133102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048176.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133102223 is about 11536.9936725301. The cubic root of 133102223 is about 510.5776141752.

Adding to 133102223 its reverse (322201331), we get a palindrome (455303554).

The spelling of 133102223 in words is "one hundred thirty-three million, one hundred two thousand, two hundred twenty-three".

Divisors: 1 127 1048049 133102223