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33480783 = 3147
BaseRepresentation
bin111111110111…
…0000001001111
32100000000000000
41333232001033
532032341113
63153335343
7554403420
oct177560117
970000000
1033480783
1117998676
12b267553
136c2341b
144637647
152e15373
hex1fee04f

33480783 has 30 divisors (see below), whose sum is σ = 57395624. Its totient is φ = 19131876.

The previous prime is 33480781. The next prime is 33480787. The reversal of 33480783 is 38708433.

It is an ABA number since it can be written as A⋅BA, here for A=7, B=9.

It is not a de Polignac number, because 33480783 - 21 = 33480781 is a prime.

It is a super-2 number, since 2×334807832 = 2241925660586178, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 3 and base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33480781) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4782966 + ... + 4782972.

Almost surely, 233480783 is an apocalyptic number.

33480783 is a deficient number, since it is larger than the sum of its proper divisors (23914841).

33480783 is an frugal number, since it uses more digits than its factorization.

33480783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 33480783 is about 5786.2581172983. The cubic root of 33480783 is about 322.3036338396.

The spelling of 33480783 in words is "thirty-three million, four hundred eighty thousand, seven hundred eighty-three".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 729 1701 2187 5103 6561 15309 19683 45927 59049 137781 177147 413343 531441 1240029 1594323 3720087 4782969 11160261 33480783