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71012285745 = 3531225167843
BaseRepresentation
bin100001000100010101…
…0010111110100110001
320210021222010212212020
41002020222113310301
52130413121120440
652342251422053
75062515320022
oct1021052276461
9223258125766
1071012285745
1128130647365
1211919a54929
1369090968bb
143619240c49
151ca941c3d0
hex1088a97d31

71012285745 has 32 divisors (see below), whose sum is σ = 117338640384. Its totient is φ = 36634680000.

The previous prime is 71012285693. The next prime is 71012285749. The reversal of 71012285745 is 54758221017.

It is not a de Polignac number, because 71012285745 - 230 = 69938543921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71012285697 and 71012285706.

It is not an unprimeable number, because it can be changed into a prime (71012285749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1012794 + ... + 1080636.

It is an arithmetic number, because the mean of its divisors is an integer number (3666832512).

Almost surely, 271012285745 is an apocalyptic number.

It is an amenable number.

71012285745 is a deficient number, since it is larger than the sum of its proper divisors (46326354639).

71012285745 is a wasteful number, since it uses less digits than its factorization.

71012285745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70133.

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 71012285745 in words is "seventy-one billion, twelve million, two hundred eighty-five thousand, seven hundred forty-five".

Divisors: 1 3 5 15 31 93 155 465 2251 6753 11255 33765 67843 69781 203529 209343 339215 348905 1017645 1046715 2103133 6309399 10515665 31546995 152714593 458143779 763572965 2290718895 4734152383 14202457149 23670761915 71012285745