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38652790 = 2511379497
BaseRepresentation
bin1001001101110…
…0101101110110
32200201202122211
42103130231312
534343342130
63500244034
7646354231
oct223345566
980652584
1038652790
111a900460
1210b4061a
138014597
1451c2418
1535d7a2a
hex24dcb76

38652790 has 32 divisors (see below), whose sum is σ = 77959584. Its totient is φ = 13674240.

The previous prime is 38652773. The next prime is 38652793. The reversal of 38652790 is 9725683.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38652793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679 + ... + 8818.

It is an arithmetic number, because the mean of its divisors is an integer number (2436237).

Almost surely, 238652790 is an apocalyptic number.

38652790 is an abundant number, since it is smaller than the sum of its proper divisors (39306794).

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

38652790 is a wasteful number, since it uses less digits than its factorization.

38652790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9552.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 38652790 is about 6217.1368008111. The cubic root of 38652790 is about 338.1117646802. Note that the first 3 decimals are identical.

The spelling of 38652790 in words is "thirty-eight million, six hundred fifty-two thousand, seven hundred ninety".

Divisors: 1 2 5 10 11 22 37 55 74 110 185 370 407 814 2035 4070 9497 18994 47485 94970 104467 208934 351389 522335 702778 1044670 1756945 3513890 3865279 7730558 19326395 38652790