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33470109 = 323718901
BaseRepresentation
bin111111110101…
…1011010011101
32022222110100200
41333223122131
532032020414
63153214113
7554330331
oct177533235
968873320
1033470109
1117990652
12b261339
136c1b5ca
1446337c1
152e12109
hex1feb69d

33470109 has 6 divisors (see below), whose sum is σ = 48345726. Its totient is φ = 22313400.

The previous prime is 33470081. The next prime is 33470113. The reversal of 33470109 is 90107433.

It can be written as a sum of positive squares in only one way, i.e., 31606884 + 1863225 = 5622^2 + 1365^2 .

It is a de Polignac number, because none of the positive numbers 2k-33470109 is a prime.

It is a super-2 number, since 2×334701092 = 2240496392943762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33470149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1859442 + ... + 1859459.

It is an arithmetic number, because the mean of its divisors is an integer number (8057621).

Almost surely, 233470109 is an apocalyptic number.

It is an amenable number.

33470109 is a deficient number, since it is larger than the sum of its proper divisors (14875617).

33470109 is a wasteful number, since it uses less digits than its factorization.

33470109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718907 (or 3718904 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 33470109 is about 5785.3356860255. The cubic root of 33470109 is about 322.2693790190.

The spelling of 33470109 in words is "thirty-three million, four hundred seventy thousand, one hundred nine".

Divisors: 1 3 9 3718901 11156703 33470109