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38378000 = 245331619
BaseRepresentation
bin1001001001100…
…1101000010000
32200012210201102
42102121220100
534311044000
63450323532
7644131133
oct222315020
980183642
1038378000
111a732a61
1210a295a8
137c4949b
14515021a
1535813d5
hex2499a10

38378000 has 80 divisors (see below), whose sum is σ = 95946240. Its totient is φ = 14832000.

The previous prime is 38377987. The next prime is 38378029. The reversal of 38378000 is 87383.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61691 + ... + 62309.

It is an arithmetic number, because the mean of its divisors is an integer number (1199328).

Almost surely, 238378000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38378000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47973120).

38378000 is an abundant number, since it is smaller than the sum of its proper divisors (57568240).

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

38378000 is a wasteful number, since it uses less digits than its factorization.

38378000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 38378000 is about 6194.9979822434. The cubic root of 38378000 is about 337.3086249285.

The spelling of 38378000 in words is "thirty-eight million, three hundred seventy-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 31 40 50 62 80 100 124 125 155 200 248 250 310 400 496 500 619 620 775 1000 1238 1240 1550 2000 2476 2480 3095 3100 3875 4952 6190 6200 7750 9904 12380 12400 15475 15500 19189 24760 30950 31000 38378 49520 61900 62000 76756 77375 95945 123800 153512 154750 191890 247600 307024 309500 383780 479725 619000 767560 959450 1238000 1535120 1918900 2398625 3837800 4797250 7675600 9594500 19189000 38378000