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38720675 = 527221261
BaseRepresentation
bin1001001110110…
…1010010100011
32200212012210002
42103231102203
534403030200
63501530215
7650056160
oct223552243
980765702
1038720675
111a947464
1210b7396b
138039456
1451dd067
1535ecbd5
hex24ed4a3

38720675 has 12 divisors (see below), whose sum is σ = 54872976. Its totient is φ = 26551200.

The previous prime is 38720657. The next prime is 38720677. The reversal of 38720675 is 57602783.

It is a happy number.

38720675 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-38720675 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38720677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110456 + ... + 110805.

It is an arithmetic number, because the mean of its divisors is an integer number (4572748).

Almost surely, 238720675 is an apocalyptic number.

38720675 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38720675 is a deficient number, since it is larger than the sum of its proper divisors (16152301).

38720675 is a wasteful number, since it uses less digits than its factorization.

38720675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221278 (or 221273 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 38720675 is about 6222.5939125095. The cubic root of 38720675 is about 338.3095882020.

The spelling of 38720675 in words is "thirty-eight million, seven hundred twenty thousand, six hundred seventy-five".

Divisors: 1 5 7 25 35 175 221261 1106305 1548827 5531525 7744135 38720675