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38871601 = 49977899
BaseRepresentation
bin1001010001001…
…0001000110001
32201010212210221
42110102020301
534422342401
63505053041
7651255166
oct224221061
981125727
1038871601
111aa3a89a
1211027181
138090062
14523c06d
15362c7a1
hex2512231

38871601 has 4 divisors (see below), whose sum is σ = 38950000. Its totient is φ = 38793204.

The previous prime is 38871589. The next prime is 38871607. The reversal of 38871601 is 10617883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38871601 - 221 = 36774449 is a prime.

It is a super-2 number, since 2×388716012 = 3022002728606402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38871607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38451 + ... + 39448.

It is an arithmetic number, because the mean of its divisors is an integer number (9737500).

Almost surely, 238871601 is an apocalyptic number.

It is an amenable number.

38871601 is a deficient number, since it is larger than the sum of its proper divisors (78399).

38871601 is an equidigital number, since it uses as much as digits as its factorization.

38871601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78398.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 38871601 is about 6234.7093757448. The cubic root of 38871601 is about 338.7485743144.

The spelling of 38871601 in words is "thirty-eight million, eight hundred seventy-one thousand, six hundred one".

Divisors: 1 499 77899 38871601