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33793945 = 514945361
BaseRepresentation
bin1000000011101…
…0011110011001
32100120220120121
42000322132121
532122401240
63204153241
7560146423
oct200723631
970526517
1033793945
1118091989
12b398821
137002b23
1446b9813
152e7804a
hex203a799

33793945 has 8 divisors (see below), whose sum is σ = 40825800. Its totient is φ = 26853120.

The previous prime is 33793933. The next prime is 33793997. The reversal of 33793945 is 54939733.

It can be written as a sum of positive squares in 4 ways, for example, as 2108304 + 31685641 = 1452^2 + 5629^2 .

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

It is not a de Polignac number, because 33793945 - 211 = 33791897 is a prime.

It is a super-2 number, since 2×337939452 = 2284061437326050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21936 + ... + 23425.

It is an arithmetic number, because the mean of its divisors is an integer number (5103225).

Almost surely, 233793945 is an apocalyptic number.

It is an amenable number.

33793945 is a deficient number, since it is larger than the sum of its proper divisors (7031855).

33793945 is a wasteful number, since it uses less digits than its factorization.

33793945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45515.

The product of its digits is 306180, while the sum is 43.

The square root of 33793945 is about 5813.2559723446. The cubic root of 33793945 is about 323.3054043495.

The spelling of 33793945 in words is "thirty-three million, seven hundred ninety-three thousand, nine hundred forty-five".

Divisors: 1 5 149 745 45361 226805 6758789 33793945