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71672710 = 2525572803
BaseRepresentation
bin1000100010110…
…10001110000110
311222212100110211
410101122032012
5121322011320
611040110034
71530131224
oct421321606
9158770424
1071672710
113750384a
122000531a
1311b05cb5
149739b14
15645b55a
hex445a386

71672710 has 16 divisors (see below), whose sum is σ = 129107376. Its totient is φ = 28647648.

The previous prime is 71672687. The next prime is 71672729. The reversal of 71672710 is 1727617.

It is a congruent number.

It is an unprimeable number.

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, 24169 + ... + 26971.

It is an arithmetic number, because the mean of its divisors is an integer number (8069211).

Almost surely, 271672710 is an apocalyptic number.

71672710 is a deficient number, since it is larger than the sum of its proper divisors (57434666).

71672710 is a wasteful number, since it uses less digits than its factorization.

71672710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 71672710 is about 8465.9736593023. The cubic root of 71672710 is about 415.3854453485.

The spelling of 71672710 in words is "seventy-one million, six hundred seventy-two thousand, seven hundred ten".

Divisors: 1 2 5 10 2557 2803 5114 5606 12785 14015 25570 28030 7167271 14334542 35836355 71672710