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38119809 = 3713223467
BaseRepresentation
bin1001000101101…
…0100110000001
32122201200112210
42101122212001
534224313214
63441012333
7642004320
oct221324601
978650483
1038119809
111a576a82
12109240a9
137b88b00
1450c40b7
15352eb59
hex245a981

38119809 has 48 divisors (see below), whose sum is σ = 65774592. Its totient is φ = 19191744.

The previous prime is 38119793. The next prime is 38119811. The reversal of 38119809 is 90891183.

It is a happy number.

It is not a de Polignac number, because 38119809 - 24 = 38119793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38119849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81394 + ... + 81860.

It is an arithmetic number, because the mean of its divisors is an integer number (1370304).

Almost surely, 238119809 is an apocalyptic number.

38119809 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38119809 is a deficient number, since it is larger than the sum of its proper divisors (27654783).

38119809 is a wasteful number, since it uses less digits than its factorization.

38119809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 38119809 is about 6174.1241484117. The cubic root of 38119809 is about 336.5504988656.

The spelling of 38119809 in words is "thirty-eight million, one hundred nineteen thousand, eight hundred nine".

Divisors: 1 3 7 13 21 23 39 69 91 161 169 273 299 467 483 507 897 1183 1401 2093 3269 3549 3887 6071 6279 9807 10741 11661 18213 27209 32223 42497 75187 78923 81627 127491 139633 225561 236769 418899 552461 977431 1657383 1815229 2932293 5445687 12706603 38119809