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71310074 = 21123140929
BaseRepresentation
bin1000100000000…
…01101011111010
311222011221000212
410100001223322
5121223410244
611024231122
71524061043
oct420015372
9158157025
1071310074
1137286350
121ba6b4a2
1311a09c14
1496838ca
1563d8d9e
hex4401afa

71310074 has 16 divisors (see below), whose sum is σ = 121763520. Its totient is φ = 31004160.

The previous prime is 71310073. The next prime is 71310077. The reversal of 71310074 is 47001317.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (71310073) 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 7 ways as a sum of consecutive naturals, for example, 69959 + ... + 70970.

It is an arithmetic number, because the mean of its divisors is an integer number (7610220).

Almost surely, 271310074 is an apocalyptic number.

71310074 is a deficient number, since it is larger than the sum of its proper divisors (50453446).

71310074 is a wasteful number, since it uses less digits than its factorization.

71310074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140965.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 71310074 is about 8444.5292349544. The cubic root of 71310074 is about 414.6836976298.

The spelling of 71310074 in words is "seventy-one million, three hundred ten thousand, seventy-four".

Divisors: 1 2 11 22 23 46 253 506 140929 281858 1550219 3100438 3241367 6482734 35655037 71310074