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38131701 = 312710567
BaseRepresentation
bin1001000101110…
…1011111110101
32122202021212020
42101131133311
534230203301
63441143353
7642054066
oct221353765
978667766
1038131701
111a584a03
121092ab59
137b9134a
1450c856d
153533436
hex245d7f5

38131701 has 4 divisors (see below), whose sum is σ = 50842272. Its totient is φ = 25421132.

The previous prime is 38131699. The next prime is 38131729. The reversal of 38131701 is 10713183.

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 38131701 - 21 = 38131699 is a prime.

It is a super-3 number, since 3×381317013 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38135701) 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, 6355281 + ... + 6355286.

It is an arithmetic number, because the mean of its divisors is an integer number (12710568).

Almost surely, 238131701 is an apocalyptic number.

It is an amenable number.

38131701 is a deficient number, since it is larger than the sum of its proper divisors (12710571).

38131701 is a wasteful number, since it uses less digits than its factorization.

38131701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12710570.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 38131701 is about 6175.0871248914. The cubic root of 38131701 is about 336.5854924164.

Adding to 38131701 its reverse (10713183), we get a palindrome (48844884).

The spelling of 38131701 in words is "thirty-eight million, one hundred thirty-one thousand, seven hundred one".

Divisors: 1 3 12710567 38131701