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60449381 = 311194371
BaseRepresentation
bin1110011010011…
…0001001100101
311012202010221222
43212212021211
5110433340011
65555350125
71332545156
oct346461145
9135663858
1060449381
1131138573
12182b2345
13c6a6685
14805792d
155490ddb
hex39a6265

60449381 has 4 divisors (see below), whose sum is σ = 60644064. Its totient is φ = 60254700.

The previous prime is 60449327. The next prime is 60449383. The reversal of 60449381 is 18394406.

60449381 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 60449381 - 214 = 60432997 is a prime.

It is a super-2 number, since 2×604493812 = 7308255326566322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60449383) 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, 96875 + ... + 97496.

It is an arithmetic number, because the mean of its divisors is an integer number (15161016).

Almost surely, 260449381 is an apocalyptic number.

It is an amenable number.

60449381 is a deficient number, since it is larger than the sum of its proper divisors (194683).

60449381 is a wasteful number, since it uses less digits than its factorization.

60449381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194682.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 60449381 is about 7774.9199995884. The cubic root of 60449381 is about 392.4617047847.

The spelling of 60449381 in words is "sixty million, four hundred forty-nine thousand, three hundred eighty-one".

Divisors: 1 311 194371 60449381