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42870048 = 2531334351
BaseRepresentation
bin1010001110001…
…0010100100000
32222200000122120
42203202110200
541433320143
64130504240
71030250364
oct243422440
988600576
1042870048
11222209a1
1212435080
138b5ccc0
14599d2a4
153b6c383
hex28e2520

42870048 has 48 divisors (see below), whose sum is σ = 121193856. Its totient is φ = 13190400.

The previous prime is 42870043. The next prime is 42870059. The reversal of 42870048 is 84007824.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (33) 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 (42870041) 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, 15928 + ... + 18423.

It is an arithmetic number, because the mean of its divisors is an integer number (2524872).

Almost surely, 242870048 is an apocalyptic number.

42870048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42870048 is an abundant number, since it is smaller than the sum of its proper divisors (78323808).

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

42870048 is a wasteful number, since it uses less digits than its factorization.

42870048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34377 (or 34369 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 42870048 is about 6547.5222794581. The cubic root of 42870048 is about 349.9865246513.

The spelling of 42870048 in words is "forty-two million, eight hundred seventy thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 34351 68702 103053 137404 206106 274808 412212 446563 549616 824424 893126 1099232 1339689 1648848 1786252 2679378 3297696 3572504 5358756 7145008 10717512 14290016 21435024 42870048