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61381174 = 273420419
BaseRepresentation
bin1110101000100…
…1101000110110
311021111111010211
43222021220312
5111203144144
610031340034
71343505601
oct352115066
9137444124
1061381174
1131714648
121868161a
13c94182a
14821b338
1555c7034
hex3a89a36

61381174 has 8 divisors (see below), whose sum is σ = 93333240. Its totient is φ = 30270096.

The previous prime is 61381171. The next prime is 61381193. The reversal of 61381174 is 47118316.

61381174 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61381171) 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, 210064 + ... + 210355.

It is an arithmetic number, because the mean of its divisors is an integer number (11666655).

Almost surely, 261381174 is an apocalyptic number.

61381174 is a deficient number, since it is larger than the sum of its proper divisors (31952066).

61381174 is a wasteful number, since it uses less digits than its factorization.

61381174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420494.

The product of its digits is 4032, while the sum is 31.

The square root of 61381174 is about 7834.6138386011. The cubic root of 61381174 is about 394.4679564434.

The spelling of 61381174 in words is "sixty-one million, three hundred eighty-one thousand, one hundred seventy-four".

Divisors: 1 2 73 146 420419 840838 30690587 61381174