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133010440 = 2353325261
BaseRepresentation
bin1111110110110…
…01010000001000
3100021021122000121
413323121100020
5233022313230
621110513024
73203366353
oct773312010
9307248017
10133010440
1169098792
1238665774
1321730b04
141394529a
15ba2577a
hex7ed9408

133010440 has 16 divisors (see below), whose sum is σ = 299273580. Its totient is φ = 53204160.

The previous prime is 133010419. The next prime is 133010459. The reversal of 133010440 is 44010331.

It can be written as a sum of positive squares in 2 ways, for example, as 132572196 + 438244 = 11514^2 + 662^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662591 + ... + 1662670.

Almost surely, 2133010440 is an apocalyptic number.

133010440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133010440 is an abundant number, since it is smaller than the sum of its proper divisors (166263140).

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

133010440 is a wasteful number, since it uses less digits than its factorization.

133010440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325272 (or 3325268 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 133010440 is about 11533.0152171928. The cubic root of 133010440 is about 510.4602279042.

Adding to 133010440 its reverse (44010331), we get a palindrome (177020771).

The spelling of 133010440 in words is "one hundred thirty-three million, ten thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3325261 6650522 13301044 16626305 26602088 33252610 66505220 133010440