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133057741 = 1941021
BaseRepresentation
bin1111110111001…
…00110011001101
3100021101000220111
413323210303031
5233030321431
621111520021
73203654305
oct773446315
9307330814
10133057741
1169120283
1238689011
13217494bb
1413958605
15ba347b1
hex7ee4ccd

133057741 has 10 divisors (see below), whose sum is σ = 140587342. Its totient is φ = 125931240.

The previous prime is 133057739. The next prime is 133057747. The reversal of 133057741 is 147750331.

It can be written as a sum of positive squares in only one way, i.e., 117288900 + 15768841 = 10830^2 + 3971^2 .

It is not a de Polignac number, because 133057741 - 21 = 133057739 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 (133057747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 129811 + ... + 130831.

Almost surely, 2133057741 is an apocalyptic number.

It is an amenable number.

133057741 is a deficient number, since it is larger than the sum of its proper divisors (7529601).

133057741 is an frugal number, since it uses more digits than its factorization.

133057741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 133057741 is about 11535.0657128601. The cubic root of 133057741 is about 510.5207304673.

The spelling of 133057741 in words is "one hundred thirty-three million, fifty-seven thousand, seven hundred forty-one".

Divisors: 1 19 361 1021 6859 19399 130321 368581 7003039 133057741