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38378412 = 22321066067
BaseRepresentation
bin1001001001100…
…1101110101100
32200012211021200
42102121232230
534311102122
63450325500
7644132262
oct222315654
980184250
1038378412
111a7332a6
1210a29890
137c49727
145150432
1535815ac
hex2499bac

38378412 has 18 divisors (see below), whose sum is σ = 97012188. Its totient is φ = 12792792.

The previous prime is 38378407. The next prime is 38378441. The reversal of 38378412 is 21487383.

38378412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1066067 = 38378412 / (3 + 8 + 3 + 7 + 8 + 4 + 1 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 532998 + ... + 533069.

It is an arithmetic number, because the mean of its divisors is an integer number (5389566).

Almost surely, 238378412 is an apocalyptic number.

It is an amenable number.

38378412 is an abundant number, since it is smaller than the sum of its proper divisors (58633776).

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

38378412 is a wasteful number, since it uses less digits than its factorization.

38378412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066077 (or 1066072 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 38378412 is about 6195.0312347881. The cubic root of 38378412 is about 337.3098319625.

The spelling of 38378412 in words is "thirty-eight million, three hundred seventy-eight thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1066067 2132134 3198201 4264268 6396402 9594603 12792804 19189206 38378412