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30646060940 = 22511954714591
BaseRepresentation
bin11100100010101001…
…011100011110001100
32221002202222012101002
4130202221130132030
51000230342422230
622024551235432
72133303135305
oct344251343614
987082865332
1030646060940
1111aa69a21a0
125b33378b78
132b7519a191
1416aa1817ac
15be56e4545
hex722a5c78c

30646060940 has 48 divisors (see below), whose sum is σ = 70219505664. Its totient is φ = 11142091200.

The previous prime is 30646060919. The next prime is 30646060969. The reversal of 30646060940 is 4906064603.

It is a happy number.

It is a super-2 number, since 2×306460609402 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30646060894 and 30646060903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2093045 + ... + 2107635.

It is an arithmetic number, because the mean of its divisors is an integer number (1462906368).

Almost surely, 230646060940 is an apocalyptic number.

It is an amenable number.

30646060940 is an abundant number, since it is smaller than the sum of its proper divisors (39573444724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30646060940 is a wasteful number, since it uses less digits than its factorization.

30646060940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24158 (or 24156 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 30646060940 in words is "thirty billion, six hundred forty-six million, sixty thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 9547 14591 19094 29182 38188 47735 58364 72955 95470 105017 145910 160501 190940 210034 291820 321002 420068 525085 642004 802505 1050170 1605010 2100340 3210020 139300277 278600554 557201108 696501385 1393002770 1532303047 2786005540 3064606094 6129212188 7661515235 15323030470 30646060940