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30625312534661 = 1322416899108991
BaseRepresentation
bin1101111011010100000101…
…10111111111000010000101
311000102202021200112210202002
412331222002313333002011
513003231120002102121
6145045024020555045
76310414536262325
oct675520267770205
9130382250483662
1030625312534661
119838138586589
123527483252a85
131411c5429c200
1477c3b72d1285
1538197bea1e0b
hex1bda82dff085

30625312534661 has 24 divisors (see below), whose sum is σ = 33305056012800. Its totient is φ = 28147879468800.

The previous prime is 30625312534651. The next prime is 30625312534679. The reversal of 30625312534661 is 16643521352603.

It is not a de Polignac number, because 30625312534661 - 214 = 30625312518277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30625312534631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280934876 + ... + 281043866.

It is an arithmetic number, because the mean of its divisors is an integer number (1387710667200).

Almost surely, 230625312534661 is an apocalyptic number.

It is an amenable number.

30625312534661 is a deficient number, since it is larger than the sum of its proper divisors (2679743478139).

30625312534661 is a wasteful number, since it uses less digits than its factorization.

30625312534661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116157 (or 116144 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 30625312534661 in words is "thirty trillion, six hundred twenty-five billion, three hundred twelve million, five hundred thirty-four thousand, six hundred sixty-one".

Divisors: 1 13 169 241 3133 6899 40729 89687 108991 1165931 1416883 1662659 18419479 21614567 26266831 280989371 341468803 751928909 4439094439 9775075817 127075985621 181214867069 2355793271897 30625312534661