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38013678 = 233703957
BaseRepresentation
bin1001000100000…
…0101011101110
32122112021222000
42101000223232
534212414203
63434433130
7641053023
oct221005356
978467860
1038013678
111a50426a
12108927a6
137b4c701
14509754a
15350d4a3
hex2440aee

38013678 has 16 divisors (see below), whose sum is σ = 84474960. Its totient is φ = 12671208.

The previous prime is 38013671. The next prime is 38013691. The reversal of 38013678 is 87631083.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38013671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351925 + ... + 352032.

It is an arithmetic number, because the mean of its divisors is an integer number (5279685).

Almost surely, 238013678 is an apocalyptic number.

38013678 is an abundant number, since it is smaller than the sum of its proper divisors (46461282).

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

38013678 is a wasteful number, since it uses less digits than its factorization.

38013678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703968 (or 703962 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 38013678 is about 6165.5233354517. The cubic root of 38013678 is about 336.2378736477.

The spelling of 38013678 in words is "thirty-eight million, thirteen thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 9 18 27 54 703957 1407914 2111871 4223742 6335613 12671226 19006839 38013678