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61067405 = 576128603
BaseRepresentation
bin1110100011110…
…1000010001101
311020220112201202
43220331002031
5111113124110
610020515245
71341031040
oct350750215
9136815652
1061067405
113151a933
121854bb25
13c861a79
148178c57
1555640a5
hex3a3d08d

61067405 has 16 divisors (see below), whose sum is σ = 85125504. Its totient is φ = 41186880.

The previous prime is 61067401. The next prime is 61067437. The reversal of 61067405 is 50476016.

61067405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61067405 - 22 = 61067401 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 (61067401) 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 15 ways as a sum of consecutive naturals, for example, 12167 + ... + 16436.

It is an arithmetic number, because the mean of its divisors is an integer number (5320344).

Almost surely, 261067405 is an apocalyptic number.

It is an amenable number.

61067405 is a deficient number, since it is larger than the sum of its proper divisors (24058099).

61067405 is a wasteful number, since it uses less digits than its factorization.

61067405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28676.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 61067405 is about 7814.5636474470. The cubic root of 61067405 is about 393.7946592497.

The spelling of 61067405 in words is "sixty-one million, sixty-seven thousand, four hundred five".

Divisors: 1 5 7 35 61 305 427 2135 28603 143015 200221 1001105 1744783 8723915 12213481 61067405