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85470951853 = 7223149936527
BaseRepresentation
bin100111110011001110…
…1110011100110101101
322011121121200020001101
41033212131303212231
52400021030424403
6103133111043101
76114023050360
oct1174635634655
9264547606041
1085470951853
11332801401a1
1214694070491
1380a1717b31
1441cb5d00d7
15235395171d
hex13e67739ad

85470951853 has 16 divisors (see below), whose sum is σ = 98187264000. Its totient is φ = 72881642736.

The previous prime is 85470951821. The next prime is 85470951913. The reversal of 85470951853 is 35815907458.

It is not a de Polignac number, because 85470951853 - 25 = 85470951821 is a prime.

It is a super-2 number, since 2×854709518532 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85470951794 and 85470951803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85470951803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2321676 + ... + 2358202.

It is an arithmetic number, because the mean of its divisors is an integer number (6136704000).

Almost surely, 285470951853 is an apocalyptic number.

It is an amenable number.

85470951853 is a deficient number, since it is larger than the sum of its proper divisors (12716312147).

85470951853 is a wasteful number, since it uses less digits than its factorization.

85470951853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38256.

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 85470951853 in words is "eighty-five billion, four hundred seventy million, nine hundred fifty-one thousand, eight hundred fifty-three".

Divisors: 1 7 223 1499 1561 10493 36527 255689 334277 2339939 8145521 54753973 57018647 383277811 12210135979 85470951853