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30302111311031 = 721736799120121
BaseRepresentation
bin1101110001111010000101…
…00101001010010010110111
310222021212001020102111111002
412320331002211022102313
512432432210443423111
6144240333041033515
76245153365225400
oct670750245122267
9128255036374432
1030302111311031
1197230649515aa
12349490392589b
1313ba6277b9211
1476a8b6a809a7
153783629d663b
hex1b8f4294a4b7

30302111311031 has 24 divisors (see below), whose sum is σ = 37424586223296. Its totient is φ = 24378791754240.

The previous prime is 30302111311019. The next prime is 30302111311049. The reversal of 30302111311031 is 13011311120303.

It is not a de Polignac number, because 30302111311031 - 26 = 30302111310967 is a prime.

It is a super-2 number, since 2×303021113110312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30302111310994 and 30302111311012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302111311081) 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 23 ways as a sum of consecutive naturals, for example, 49254350 + ... + 49865771.

It is an arithmetic number, because the mean of its divisors is an integer number (1559357759304).

Almost surely, 230302111311031 is an apocalyptic number.

30302111311031 is a deficient number, since it is larger than the sum of its proper divisors (7122474912265).

30302111311031 is a wasteful number, since it uses less digits than its factorization.

30302111311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99120519 (or 99120512 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 30302111311031 its reverse (13011311120303), we get a palindrome (43313422431334).

The spelling of 30302111311031 in words is "thirty trillion, three hundred two billion, one hundred eleven million, three hundred eleven thousand, thirty-one".

Divisors: 1 7 17 49 119 367 833 2569 6239 17983 43673 305711 99120121 693840847 1685042057 4856885929 11795294399 36377084407 82567060793 254639590849 618410434919 1782477135943 4328873044433 30302111311031