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38987353 = 239163127
BaseRepresentation
bin1001010010111…
…0011001011001
32201100202121001
42110232121121
534440043403
63511345001
7652246516
oct224563131
981322531
1038987353
1120009859
1211082161
138100952
14526c30d
153651c1d
hex252e659

38987353 has 4 divisors (see below), whose sum is σ = 39150720. Its totient is φ = 38823988.

The previous prime is 38987327. The next prime is 38987359. The reversal of 38987353 is 35378983.

It is a happy number.

38987353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38987353 - 25 = 38987321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38987359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81325 + ... + 81802.

It is an arithmetic number, because the mean of its divisors is an integer number (9787680).

Almost surely, 238987353 is an apocalyptic number.

It is an amenable number.

38987353 is a deficient number, since it is larger than the sum of its proper divisors (163367).

38987353 is a wasteful number, since it uses less digits than its factorization.

38987353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163366.

The product of its digits is 544320, while the sum is 46.

The square root of 38987353 is about 6243.9853459149. The cubic root of 38987353 is about 339.0844833715.

It can be divided in two parts, 38987 and 353, that added together give a triangular number (39340 = T280).

The spelling of 38987353 in words is "thirty-eight million, nine hundred eighty-seven thousand, three hundred fifty-three".

Divisors: 1 239 163127 38987353