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38268790 = 257737489
BaseRepresentation
bin1001000111111…
…0111101110110
32200000020220121
42101332331312
534244100130
63444122154
7643164550
oct221767566
980006817
1038268790
111a6689aa
121099635a
137c0b871
1451224d0
15355dd7a
hex247ef76

38268790 has 32 divisors (see below), whose sum is σ = 79813440. Its totient is φ = 12939264.

The previous prime is 38268781. The next prime is 38268817. The reversal of 38268790 is 9786283.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366 + ... + 8854.

It is an arithmetic number, because the mean of its divisors is an integer number (2494170).

Almost surely, 238268790 is an apocalyptic number.

38268790 is an abundant number, since it is smaller than the sum of its proper divisors (41544650).

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

38268790 is a wasteful number, since it uses less digits than its factorization.

38268790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 38268790 is about 6186.1773333780. The cubic root of 38268790 is about 336.9883679032.

The spelling of 38268790 in words is "thirty-eight million, two hundred sixty-eight thousand, seven hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 73 146 365 511 730 1022 2555 5110 7489 14978 37445 52423 74890 104846 262115 524230 546697 1093394 2733485 3826879 5466970 7653758 19134395 38268790