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33980741 = 35299629
BaseRepresentation
bin1000000110100…
…0000101000101
32100221101210222
42001220011011
532144340431
63212154125
7561555134
oct201500505
970841728
1033980741
11181aa263
12b468945
137069b62
14472791b
152eb357b
hex2068145

33980741 has 4 divisors (see below), whose sum is σ = 33993900. Its totient is φ = 33967584.

The previous prime is 33980731. The next prime is 33980747. The reversal of 33980741 is 14708933.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14708933 = 101145633.

It can be written as a sum of positive squares in 2 ways, for example, as 20511841 + 13468900 = 4529^2 + 3670^2 .

It is a cyclic number.

It is not a de Polignac number, because 33980741 - 222 = 29786437 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 (33980747) 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, 1286 + ... + 8343.

It is an arithmetic number, because the mean of its divisors is an integer number (8498475).

Almost surely, 233980741 is an apocalyptic number.

It is an amenable number.

33980741 is a deficient number, since it is larger than the sum of its proper divisors (13159).

33980741 is an equidigital number, since it uses as much as digits as its factorization.

33980741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13158.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 33980741 is about 5829.3002152917. The cubic root of 33980741 is about 323.9000002574.

The spelling of 33980741 in words is "thirty-three million, nine hundred eighty thousand, seven hundred forty-one".

Divisors: 1 3529 9629 33980741