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33130248 = 2331380427
BaseRepresentation
bin111111001100…
…0011100001000
32022100012011020
41332120130020
531440131443
63142032440
7551413434
oct176303410
968305136
1033130248
1117779278
12b118720
136b2c9c8
1445859c4
152d96583
hex1f98708

33130248 has 16 divisors (see below), whose sum is σ = 82825680. Its totient is φ = 11043408.

The previous prime is 33130241. The next prime is 33130261. The reversal of 33130248 is 84203133.

It is a super-2 number, since 2×331302482 = 2195226665083008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1380427 = 33130248 / (3 + 3 + 1 + 3 + 0 + 2 + 4 + 8).

It is not an unprimeable number, because it can be changed into a prime (33130241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690190 + ... + 690237.

It is an arithmetic number, because the mean of its divisors is an integer number (5176605).

Almost surely, 233130248 is an apocalyptic number.

It is an amenable number.

33130248 is an abundant number, since it is smaller than the sum of its proper divisors (49695432).

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

33130248 is a wasteful number, since it uses less digits than its factorization.

33130248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380436 (or 1380432 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 33130248 is about 5755.8881156603. Note that the first 3 decimals coincide. The cubic root of 33130248 is about 321.1748739022.

The spelling of 33130248 in words is "thirty-three million, one hundred thirty thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 1380427 2760854 4141281 5521708 8282562 11043416 16565124 33130248