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38378328 = 2331984163
BaseRepresentation
bin1001001001100…
…1101101011000
32200012211011120
42102121231120
534311101303
63450325240
7644132112
oct222315530
980184146
1038378328
111a73322a
1210a29820
137c49691
1451503b2
153581553
hex2499b58

38378328 has 32 divisors (see below), whose sum is σ = 100996800. Its totient is φ = 12119328.

The previous prime is 38378323. The next prime is 38378357. The reversal of 38378328 is 82387383.

It is a self number, because there is not a number n which added to its sum of digits gives 38378328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38378323) 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, 41626 + ... + 42537.

It is an arithmetic number, because the mean of its divisors is an integer number (3156150).

Almost surely, 238378328 is an apocalyptic number.

38378328 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38378328 is an abundant number, since it is smaller than the sum of its proper divisors (62618472).

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

38378328 is a wasteful number, since it uses less digits than its factorization.

38378328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84191 (or 84187 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 38378328 is about 6195.0244551575. The cubic root of 38378328 is about 337.3095858689.

The spelling of 38378328 in words is "thirty-eight million, three hundred seventy-eight thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 84163 168326 252489 336652 504978 673304 1009956 1599097 2019912 3198194 4797291 6396388 9594582 12792776 19189164 38378328