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72850190870 = 2559471122497
BaseRepresentation
bin100001111011000110…
…1011011001000010110
320222001001111010201102
41003312031123020112
52143144122101440
653244504230102
75156203256012
oct1036615331026
9228031433642
1072850190870
1128994040716
121215146b332
136b3ca98b22
143751383542
151d65961b15
hex10f635b216

72850190870 has 16 divisors (see below), whose sum is σ = 131133619008. Its totient is φ = 29139348480.

The previous prime is 72850190851. The next prime is 72850190879. The reversal of 72850190870 is 7809105827.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72850190879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533462 + ... + 655958.

It is an arithmetic number, because the mean of its divisors is an integer number (8195851188).

Almost surely, 272850190870 is an apocalyptic number.

72850190870 is a deficient number, since it is larger than the sum of its proper divisors (58283428138).

72850190870 is a wasteful number, since it uses less digits than its factorization.

72850190870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181975.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 72850190870 in words is "seventy-two billion, eight hundred fifty million, one hundred ninety thousand, eight hundred seventy".

Divisors: 1 2 5 10 59471 118942 122497 244994 297355 594710 612485 1224970 7285019087 14570038174 36425095435 72850190870