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38492028 = 22321069223
BaseRepresentation
bin1001001011010…
…1011101111100
32200102121010200
42102311131330
534323221103
63453003500
7645114441
oct222653574
980377120
1038492028
111a8006a3
1210a83590
137c89363
14517d9c8
1535a50a3
hex24b577c

38492028 has 18 divisors (see below), whose sum is σ = 97299384. Its totient is φ = 12830664.

The previous prime is 38492021. The next prime is 38492033. The reversal of 38492028 is 82029483.

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

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: 1069223 = 38492028 / (3 + 8 + 4 + 9 + 2 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 38491983 and 38492001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38492021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 534576 + ... + 534647.

Almost surely, 238492028 is an apocalyptic number.

It is an amenable number.

38492028 is an abundant number, since it is smaller than the sum of its proper divisors (58807356).

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

38492028 is a wasteful number, since it uses less digits than its factorization.

38492028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069233 (or 1069228 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 38492028 is about 6204.1943876703. The cubic root of 38492028 is about 337.6423629858.

The spelling of 38492028 in words is "thirty-eight million, four hundred ninety-two thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1069223 2138446 3207669 4276892 6415338 9623007 12830676 19246014 38492028