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38197705 = 5721367179
BaseRepresentation
bin1001000110110…
…1100111001001
32122212122101211
42101231213021
534234311310
63442413121
7642450400
oct221554711
978778354
1038197705
111a61a557
12109611a1
137bb53c0
145104637
153547c8a
hex246d9c9

38197705 has 48 divisors (see below), whose sum is σ = 58605120. Its totient is φ = 23683968.

The previous prime is 38197703. The next prime is 38197711. The reversal of 38197705 is 50779183.

38197705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38197705 - 21 = 38197703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38197703) 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 47 ways as a sum of consecutive naturals, for example, 213306 + ... + 213484.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 238197705 is an apocalyptic number.

38197705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38197705 is a deficient number, since it is larger than the sum of its proper divisors (20407415).

38197705 is a wasteful number, since it uses less digits than its factorization.

38197705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 38197705 is about 6180.4291922163. The cubic root of 38197705 is about 336.7795844914.

The spelling of 38197705 in words is "thirty-eight million, one hundred ninety-seven thousand, seven hundred five".

Divisors: 1 5 7 13 35 49 65 67 91 179 245 335 455 469 637 871 895 1253 2327 2345 3185 3283 4355 6097 6265 8771 11635 11993 16289 16415 30485 42679 43855 59965 81445 83951 114023 155909 213395 419755 570115 587657 779545 1091363 2938285 5456815 7639541 38197705