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31066068 = 22311235349
BaseRepresentation
bin111011010000…
…0011111010100
32011110022122010
41312200133110
530423103233
63025504220
7525025425
oct166403724
964408563
1031066068
1116599440
12a4a2070
1365892b7
1441a964c
152ad9b63
hex1da07d4

31066068 has 24 divisors (see below), whose sum is σ = 79077600. Its totient is φ = 9413920.

The previous prime is 31066067. The next prime is 31066103. The reversal of 31066068 is 86066013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31066067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117543 + ... + 117806.

It is an arithmetic number, because the mean of its divisors is an integer number (3294900).

Almost surely, 231066068 is an apocalyptic number.

It is an amenable number.

31066068 is an abundant number, since it is smaller than the sum of its proper divisors (48011532).

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

31066068 is a wasteful number, since it uses less digits than its factorization.

31066068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235367 (or 235365 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 31066068 is about 5573.6942865572. The cubic root of 31066068 is about 314.3610732711.

Subtracting 31066068 from its reverse (86066013), we obtain a palindrome (54999945).

The spelling of 31066068 in words is "thirty-one million, sixty-six thousand, sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 235349 470698 706047 941396 1412094 2588839 2824188 5177678 7766517 10355356 15533034 31066068