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38609973 = 3331163283
BaseRepresentation
bin1001001101001…
…0010000110101
32200122120221000
42103102100311
534341004343
63455313513
7646115343
oct223222065
980576830
1038609973
111a881276
1210b1b899
137ccac4c
1451b0993
1535c9ed3
hex24d2435

38609973 has 32 divisors (see below), whose sum is σ = 59617280. Its totient is φ = 24669360.

The previous prime is 38609971. The next prime is 38609993. The reversal of 38609973 is 37990683.

It is a happy number.

38609973 is a `hidden beast` number, since 38 + 609 + 9 + 7 + 3 = 666.

It is not a de Polignac number, because 38609973 - 21 = 38609971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38609971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136290 + ... + 136572.

It is an arithmetic number, because the mean of its divisors is an integer number (1863040).

Almost surely, 238609973 is an apocalyptic number.

It is an amenable number.

38609973 is a deficient number, since it is larger than the sum of its proper divisors (21007307).

38609973 is a wasteful number, since it uses less digits than its factorization.

38609973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 38609973 is about 6213.6923805415. The cubic root of 38609973 is about 337.9868726155.

The spelling of 38609973 in words is "thirty-eight million, six hundred nine thousand, nine hundred seventy-three".

Divisors: 1 3 9 27 31 93 163 279 283 489 837 849 1467 2547 4401 5053 7641 8773 15159 26319 45477 46129 78957 136431 138387 236871 415161 1245483 1429999 4289997 12869991 38609973