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30971690024 = 2311862940787
BaseRepresentation
bin11100110110000011…
…100111110000101000
32221221110200212111112
4130312003213300220
51001412223040044
622121142445452
72144336010242
oct346603476050
987843625445
1030971690024
1112153791140
126004433888
132bc779c602
1416db507092
15c140b709e
hex7360e7c28

30971690024 has 32 divisors (see below), whose sum is σ = 63360079200. Its totient is φ = 14076064320.

The previous prime is 30971690021. The next prime is 30971690033. The reversal of 30971690024 is 42009617903.

It is a super-2 number, since 2×309716900242 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30971690021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 738959 + ... + 779745.

It is an arithmetic number, because the mean of its divisors is an integer number (1980002475).

Almost surely, 230971690024 is an apocalyptic number.

It is an amenable number.

30971690024 is an abundant number, since it is smaller than the sum of its proper divisors (32388389176).

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

30971690024 is a wasteful number, since it uses less digits than its factorization.

30971690024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49433 (or 49429 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 30971690024 in words is "thirty billion, nine hundred seventy-one million, six hundred ninety thousand, twenty-four".

Divisors: 1 2 4 8 11 22 44 88 8629 17258 34516 40787 69032 81574 94919 163148 189838 326296 379676 448657 759352 897314 1794628 3589256 351951023 703902046 1407804092 2815608184 3871461253 7742922506 15485845012 30971690024