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30406071650 = 2521793738177
BaseRepresentation
bin11100010100010101…
…111101010101100010
32220111001101110221212
4130110111331111202
5444232423243100
621545055350122
72124330226133
oct342425752542
986431343855
1030406071650
1111993486739
125a86b22342
132b37551196
14168634dc8a
15bce5db635
hex71457d562

30406071650 has 48 divisors (see below), whose sum is σ = 59947553736. Its totient is φ = 11434475520.

The previous prime is 30406071613. The next prime is 30406071719. The reversal of 30406071650 is 5617060403.

It can be written as a sum of positive squares in 12 ways, for example, as 903543481 + 29502528169 = 30059^2 + 171763^2 .

It is a super-3 number, since 3×304060716503 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 777362 + ... + 815538.

Almost surely, 230406071650 is an apocalyptic number.

30406071650 is a deficient number, since it is larger than the sum of its proper divisors (29541482086).

30406071650 is a wasteful number, since it uses less digits than its factorization.

30406071650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39143 (or 39138 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 30406071650 in words is "thirty billion, four hundred six million, seventy-one thousand, six hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 850 937 1874 4685 9370 15929 23425 31858 38177 46850 76354 79645 159290 190885 381770 398225 649009 796450 954425 1298018 1908850 3245045 6490090 16225225 32450450 35771849 71543698 178859245 357718490 608121433 894296225 1216242866 1788592450 3040607165 6081214330 15203035825 30406071650