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133106248 = 23111979609
BaseRepresentation
bin1111110111100…
…00101001001000
3100021110111110001
413323300221020
5233033344443
621112532344
73204245602
oct773605110
9307414401
10133106248
1169153770
12386b10b4
13217655c2
141396c172
15ba43d4d
hex7ef0a48

133106248 has 32 divisors (see below), whose sum is σ = 286596000. Its totient is φ = 57317760.

The previous prime is 133106227. The next prime is 133106249. The reversal of 133106248 is 842601331.

It is not an unprimeable number, because it can be changed into a prime (133106249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38133 + ... + 41476.

It is an arithmetic number, because the mean of its divisors is an integer number (8956125).

Almost surely, 2133106248 is an apocalyptic number.

It is an amenable number.

133106248 is an abundant number, since it is smaller than the sum of its proper divisors (153489752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133106248 is a wasteful number, since it uses less digits than its factorization.

133106248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79645 (or 79641 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 133106248 is about 11537.1681100693. The cubic root of 133106248 is about 510.5827607314.

Adding to 133106248 its reverse (842601331), we get a palindrome (975707579).

The spelling of 133106248 in words is "one hundred thirty-three million, one hundred six thousand, two hundred forty-eight".

Divisors: 1 2 4 8 11 19 22 38 44 76 88 152 209 418 836 1672 79609 159218 318436 636872 875699 1512571 1751398 3025142 3502796 6050284 7005592 12100568 16638281 33276562 66553124 133106248