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50501149 = 163309823
BaseRepresentation
bin1100000010100…
…1011000011101
310112000201112221
43000221120131
5100412014044
65002225341
71152152446
oct300513035
9115021487
1050501149
1126563296
1214ab5251
13a60254a
1469c82cd
154678484
hex302961d

50501149 has 4 divisors (see below), whose sum is σ = 50811136. Its totient is φ = 50191164.

The previous prime is 50501137. The next prime is 50501153. The reversal of 50501149 is 94110505.

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 50501149 - 27 = 50501021 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 (50501159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154749 + ... + 155074.

It is an arithmetic number, because the mean of its divisors is an integer number (12702784).

Almost surely, 250501149 is an apocalyptic number.

It is an amenable number.

50501149 is a deficient number, since it is larger than the sum of its proper divisors (309987).

50501149 is a wasteful number, since it uses less digits than its factorization.

50501149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309986.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 50501149 is about 7106.4160446740. The cubic root of 50501149 is about 369.6298928748.

The spelling of 50501149 in words is "fifty million, five hundred one thousand, one hundred forty-nine".

Divisors: 1 163 309823 50501149