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33980345 = 57970867
BaseRepresentation
bin1000000110011…
…1111110111001
32100221101021022
42001213332321
532144332340
63212152225
7561554030
oct201477671
970841238
1033980345
11181a9a33
12b468675
137069919
144727717
152eb33b5
hex2067fb9

33980345 has 8 divisors (see below), whose sum is σ = 46601664. Its totient is φ = 23300784.

The previous prime is 33980329. The next prime is 33980347. The reversal of 33980345 is 54308933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33980345 - 24 = 33980329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 970867 = 33980345 / (3 + 3 + 9 + 8 + 0 + 3 + 4 + 5).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33980347) 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, 485399 + ... + 485468.

It is an arithmetic number, because the mean of its divisors is an integer number (5825208).

Almost surely, 233980345 is an apocalyptic number.

33980345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33980345 is a deficient number, since it is larger than the sum of its proper divisors (12621319).

33980345 is an equidigital number, since it uses as much as digits as its factorization.

33980345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970879.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 33980345 is about 5829.2662488516. The cubic root of 33980345 is about 323.8987420457.

The spelling of 33980345 in words is "thirty-three million, nine hundred eighty thousand, three hundred forty-five".

Divisors: 1 5 7 35 970867 4854335 6796069 33980345