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38300428 = 22192321911
BaseRepresentation
bin1001001000011…
…0101100001100
32200001212022101
42102012230030
534301103203
63444524444
7643356025
oct222065414
980055271
1038300428
111a68a751
12109b0724
137c2009a
14512dc4c
15356841d
hex2486b0c

38300428 has 24 divisors (see below), whose sum is σ = 73624320. Its totient is φ = 17352720.

The previous prime is 38300419. The next prime is 38300429. The reversal of 38300428 is 82400383.

It is a junction number, because it is equal to n+sod(n) for n = 38300396 and 38300405.

It is not an unprimeable number, because it can be changed into a prime (38300429) 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, 9208 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (3067680).

Almost surely, 238300428 is an apocalyptic number.

38300428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38300428 is a deficient number, since it is larger than the sum of its proper divisors (35323892).

38300428 is a wasteful number, since it uses less digits than its factorization.

38300428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21957 (or 21955 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 38300428 is about 6188.7339577655. The cubic root of 38300428 is about 337.0812085812.

The spelling of 38300428 in words is "thirty-eight million, three hundred thousand, four hundred twenty-eight".

Divisors: 1 2 4 19 23 38 46 76 92 437 874 1748 21911 43822 87644 416309 503953 832618 1007906 1665236 2015812 9575107 19150214 38300428