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38078000 = 245379241
BaseRepresentation
bin1001000101000…
…0011000110000
32122122120012022
42101100120300
534221444000
63440051012
7641441402
oct221203060
978576168
1038078000
111a548624
1210903a68
137b72a7c
1450b2b72
153522585
hex2450630

38078000 has 80 divisors (see below), whose sum is σ = 93624960. Its totient is φ = 14976000.

The previous prime is 38077999. The next prime is 38078003. The reversal of 38078000 is 87083.

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

It is not an unprimeable number, because it can be changed into a prime (38078003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157880 + ... + 158120.

It is an arithmetic number, because the mean of its divisors is an integer number (1170312).

Almost surely, 238078000 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 38078000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46812480).

38078000 is an abundant number, since it is smaller than the sum of its proper divisors (55546960).

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

38078000 is a wasteful number, since it uses less digits than its factorization.

38078000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 38078000 is about 6170.7373951579. The cubic root of 38078000 is about 336.4274133665.

The spelling of 38078000 in words is "thirty-eight million, seventy-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 79 80 100 125 158 200 241 250 316 395 400 482 500 632 790 964 1000 1205 1264 1580 1928 1975 2000 2410 3160 3856 3950 4820 6025 6320 7900 9640 9875 12050 15800 19039 19280 19750 24100 30125 31600 38078 39500 48200 60250 76156 79000 95195 96400 120500 152312 158000 190390 241000 304624 380780 475975 482000 761560 951950 1523120 1903900 2379875 3807800 4759750 7615600 9519500 19039000 38078000