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30285731602873 = 671229585162861
BaseRepresentation
bin1101110001011011100100…
…10001100010000110111001
310222020021202201010010000101
412320231302101202012321
512432200134242242443
6144225023435035401
76244033443056245
oct670556221420671
9128207681103011
1030285731602873
119717119a4040a
1234916b229bb61
1313b8c17177906
14769ba150b425
15377c049d984d
hex1b8b724621b9

30285731602873 has 16 divisors (see below), whose sum is σ = 30768514983360. Its totient is φ = 29803862088000.

The previous prime is 30285731602859. The next prime is 30285731602897. The reversal of 30285731602873 is 37820613758203.

It is a cyclic number.

It is not a de Polignac number, because 30285731602873 - 213 = 30285731594681 is a prime.

It is a super-3 number, since 3×302857316028733 (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30285731602813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481757463 + ... + 481820323.

It is an arithmetic number, because the mean of its divisors is an integer number (1923032186460).

Almost surely, 230285731602873 is an apocalyptic number.

It is an amenable number.

30285731602873 is a deficient number, since it is larger than the sum of its proper divisors (482783380487).

30285731602873 is a wasteful number, since it uses less digits than its factorization.

30285731602873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70008.

The product of its (nonzero) digits is 10160640, while the sum is 55.

It can be divided in two parts, 3028573 and 1602873, that added together give a triangular number (4631446 = T3043).

The spelling of 30285731602873 in words is "thirty trillion, two hundred eighty-five billion, seven hundred thirty-one million, six hundred two thousand, eight hundred seventy-three".

Divisors: 1 67 1229 5851 62861 82343 392017 4211687 7190879 77256169 367799711 481788893 5176163323 24642580637 452025844819 30285731602873