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71285914 = 277616691
BaseRepresentation
bin1000011111110…
…11110010011010
311222010200220001
410033323302122
5121222122124
611023523214
71523630440
oct417736232
9158120801
1071285914
113726a187
121ba5950a
13119cbc1b
149678b90
1563d1b44
hex43fbc9a

71285914 has 16 divisors (see below), whose sum is σ = 122383296. Its totient is φ = 30506400.

The previous prime is 71285909. The next prime is 71285927. The reversal of 71285914 is 41958217.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7309 + ... + 13999.

It is an arithmetic number, because the mean of its divisors is an integer number (7648956).

Almost surely, 271285914 is an apocalyptic number.

71285914 is a deficient number, since it is larger than the sum of its proper divisors (51097382).

71285914 is a wasteful number, since it uses less digits than its factorization.

71285914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461.

The product of its digits is 20160, while the sum is 37.

The square root of 71285914 is about 8443.0986018168. The cubic root of 71285914 is about 414.6368604429.

The spelling of 71285914 in words is "seventy-one million, two hundred eighty-five thousand, nine hundred fourteen".

Divisors: 1 2 7 14 761 1522 5327 6691 10654 13382 46837 93674 5091851 10183702 35642957 71285914