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33380680 = 2351276571
BaseRepresentation
bin111111101010…
…1100101001000
32022210220200111
41333111211020
532021140210
63151244104
7553505524
oct177254510
968726614
1033380680
111792a443
12b219634
136bb99a8
14460cd84
152de588a
hex1fd5948

33380680 has 32 divisors (see below), whose sum is σ = 75709440. Its totient is φ = 13245120.

The previous prime is 33380657. The next prime is 33380681. The reversal of 33380680 is 8608333.

It is a super-2 number, since 2×333806802 = 2228539594524800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33380681) 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, 1795 + ... + 8365.

It is an arithmetic number, because the mean of its divisors is an integer number (2365920).

Almost surely, 233380680 is an apocalyptic number.

It is an amenable number.

33380680 is an abundant number, since it is smaller than the sum of its proper divisors (42328760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33380680 is a wasteful number, since it uses less digits than its factorization.

33380680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709 (or 6705 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 33380680 is about 5777.6015785099. The cubic root of 33380680 is about 321.9820984608.

The spelling of 33380680 in words is "thirty-three million, three hundred eighty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 127 254 508 635 1016 1270 2540 5080 6571 13142 26284 32855 52568 65710 131420 262840 834517 1669034 3338068 4172585 6676136 8345170 16690340 33380680