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30950712 = 23321343769
BaseRepresentation
bin111011000010…
…0010100111000
32011020110101200
41312010110320
530410410322
63023214200
7524035212
oct166042470
964213350
1030950712
111651a801
12a447360
136548940
1441795b2
152ab58ac
hex1d84538

30950712 has 96 divisors (see below), whose sum is σ = 92492400. Its totient is φ = 9289728.

The previous prime is 30950707. The next prime is 30950719. The reversal of 30950712 is 21705903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30950719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39864 + ... + 40632.

Almost surely, 230950712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30950712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46246200).

30950712 is an abundant number, since it is smaller than the sum of its proper divisors (61541688).

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

30950712 is a wasteful number, since it uses less digits than its factorization.

30950712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 30950712 is about 5563.3364090265. The cubic root of 30950712 is about 313.9714905080.

The spelling of 30950712 in words is "thirty million, nine hundred fifty thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 43 52 72 78 86 104 117 129 156 172 234 258 312 344 387 468 516 559 769 774 936 1032 1118 1538 1548 1677 2236 2307 3076 3096 3354 4472 4614 5031 6152 6708 6921 9228 9997 10062 13416 13842 18456 19994 20124 27684 29991 33067 39988 40248 55368 59982 66134 79976 89973 99201 119964 132268 179946 198402 239928 264536 297603 359892 396804 429871 595206 719784 793608 859742 1190412 1289613 1719484 2380824 2579226 3438968 3868839 5158452 7737678 10316904 15475356 30950712