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133312125 = 353355499
BaseRepresentation
bin1111111001000…
…10111001111101
3100021211221212010
413330202321331
5233111442000
621121201433
73206064042
oct774427175
9307757763
10133312125
1169284411
1238790279
132180821b
14139c31c9
15ba84d50
hex7f22e7d

133312125 has 16 divisors (see below), whose sum is σ = 221832000. Its totient is φ = 71099600.

The previous prime is 133312103. The next prime is 133312129. The reversal of 133312125 is 521213331.

It is not a de Polignac number, because 133312125 - 26 = 133312061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133312129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177375 + ... + 178124.

It is an arithmetic number, because the mean of its divisors is an integer number (13864500).

Almost surely, 2133312125 is an apocalyptic number.

133312125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133312125 is a deficient number, since it is larger than the sum of its proper divisors (88519875).

133312125 is an equidigital number, since it uses as much as digits as its factorization.

133312125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355517 (or 355507 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 133312125 is about 11546.0869994990. The cubic root of 133312125 is about 510.8458665829.

Adding to 133312125 its reverse (521213331), we get a palindrome (654525456).

The spelling of 133312125 in words is "one hundred thirty-three million, three hundred twelve thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 355499 1066497 1777495 5332485 8887475 26662425 44437375 133312125