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38136757 = 83459479
BaseRepresentation
bin1001000101111…
…0101110110101
32122202112210111
42101132232311
534230334012
63441223021
7642104611
oct221365665
978675714
1038136757
111a58878a
1210931a71
137b93739
1450ca341
153534ba7
hex245ebb5

38136757 has 4 divisors (see below), whose sum is σ = 38596320. Its totient is φ = 37677196.

The previous prime is 38136739. The next prime is 38136793. The reversal of 38136757 is 75763183.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75763183 = 195138833.

It is a cyclic number.

It is not a de Polignac number, because 38136757 - 223 = 29748149 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 (38133757) 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, 229657 + ... + 229822.

It is an arithmetic number, because the mean of its divisors is an integer number (9649080).

Almost surely, 238136757 is an apocalyptic number.

It is an amenable number.

38136757 is a deficient number, since it is larger than the sum of its proper divisors (459563).

38136757 is an equidigital number, since it uses as much as digits as its factorization.

38136757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459562.

The product of its digits is 105840, while the sum is 40.

The square root of 38136757 is about 6175.4964982583. The cubic root of 38136757 is about 336.6003680622.

The spelling of 38136757 in words is "thirty-eight million, one hundred thirty-six thousand, seven hundred fifty-seven".

Divisors: 1 83 459479 38136757