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33379472 = 247298031
BaseRepresentation
bin111111101010…
…1010010010000
32022210212000202
41333111102100
532021120342
63151234332
7553502150
oct177252220
968725022
1033379472
1117929545
12b2189a8
136bb9289
14460c760
152de5332
hex1fd5490

33379472 has 20 divisors (see below), whose sum is σ = 73911936. Its totient is φ = 14305440.

The previous prime is 33379471. The next prime is 33379499. The reversal of 33379472 is 27497333.

It is a happy number.

It is a super-2 number, since 2×333794722 = 2228378301997568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (33379471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148904 + ... + 149127.

Almost surely, 233379472 is an apocalyptic number.

It is an amenable number.

33379472 is an abundant number, since it is smaller than the sum of its proper divisors (40532464).

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

33379472 is a wasteful number, since it uses less digits than its factorization.

33379472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298046 (or 298040 counting only the distinct ones).

The product of its digits is 95256, while the sum is 38.

The square root of 33379472 is about 5777.4970359144. The cubic root of 33379472 is about 321.9782143871.

The spelling of 33379472 in words is "thirty-three million, three hundred seventy-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 298031 596062 1192124 2086217 2384248 4172434 4768496 8344868 16689736 33379472