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38003812 = 22721117627
BaseRepresentation
bin1001000011111…
…0010001100100
32122111210102121
42100332101210
534212110222
63434315324
7641012200
oct220762144
978453377
1038003812
111a4a7910
1210888b44
137b48082
145093b00
15350a5c7
hex243e464

38003812 has 36 divisors (see below), whose sum is σ = 84402864. Its totient is φ = 14805840.

The previous prime is 38003803. The next prime is 38003813. The reversal of 38003812 is 21830083.

It is not an unprimeable number, because it can be changed into a prime (38003813) 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 11 ways as a sum of consecutive naturals, for example, 6658 + ... + 10969.

It is an arithmetic number, because the mean of its divisors is an integer number (2344524).

Almost surely, 238003812 is an apocalyptic number.

It is an amenable number.

38003812 is an abundant number, since it is smaller than the sum of its proper divisors (46399052).

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

38003812 is a wasteful number, since it uses less digits than its factorization.

38003812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17656 (or 17647 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 38003812 is about 6164.7231892438. The cubic root of 38003812 is about 336.2087822779.

Adding to 38003812 its reverse (21830083), we get a palindrome (59833895).

The spelling of 38003812 in words is "thirty-eight million, three thousand, eight hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 17627 35254 70508 123389 193897 246778 387794 493556 775588 863723 1357279 1727446 2714558 3454892 5429116 9500953 19001906 38003812