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42133380 = 22353718979
BaseRepresentation
bin1010000010111…
…0011110000100
32221021121010120
42200232132010
541241232010
64103021540
71021061562
oct240563604
987247116
1042133380
1121868483
121213a8b0
1389628c3
14584aa32
153a73e70
hex282e784

42133380 has 48 divisors (see below), whose sum is σ = 121168320. Its totient is φ = 10931328.

The previous prime is 42133369. The next prime is 42133411. The reversal of 42133380 is 8333124.

It is a self number, because there is not a number n which added to its sum of digits gives 42133380.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7270 + ... + 11709.

It is an arithmetic number, because the mean of its divisors is an integer number (2524340).

Almost surely, 242133380 is an apocalyptic number.

It is an amenable number.

42133380 is an abundant number, since it is smaller than the sum of its proper divisors (79034940).

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

42133380 is a wasteful number, since it uses less digits than its factorization.

42133380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19028 (or 19026 counting only the distinct ones).

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

The square root of 42133380 is about 6491.0230318494. The cubic root of 42133380 is about 347.9702379092.

The spelling of 42133380 in words is "forty-two million, one hundred thirty-three thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 18979 37958 56937 75916 94895 113874 189790 227748 284685 379580 569370 702223 1138740 1404446 2106669 2808892 3511115 4213338 7022230 8426676 10533345 14044460 21066690 42133380