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30665052 = 223211211367
BaseRepresentation
bin111010011111…
…0100101011100
32010200221112200
41310332211130
530322240202
63013131500
7521435325
oct164764534
963627480
1030665052
1116345120
12a329b90
136478902
14410344c
152a5ae1c
hex1d3e95c

30665052 has 72 divisors (see below), whose sum is σ = 85193472. Its totient is φ = 9223200.

The previous prime is 30665051. The next prime is 30665053. The reversal of 30665052 is 25056603.

30665052 is a `hidden beast` number, since 3 + 0 + 6 + 650 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (30665051) and next prime (30665053).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30665051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83373 + ... + 83739.

Almost surely, 230665052 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 30665052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42596736).

30665052 is an abundant number, since it is smaller than the sum of its proper divisors (54528420).

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

30665052 is a wasteful number, since it uses less digits than its factorization.

30665052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 30665052 is about 5537.6034527582. The cubic root of 30665052 is about 313.0025688187.

It can be divided in two parts, 3066 and 5052, that added together give a palindrome (8118).

The spelling of 30665052 in words is "thirty million, six hundred sixty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 211 367 396 422 633 734 844 1101 1266 1468 1899 2202 2321 2532 3303 3798 4037 4404 4642 6606 6963 7596 8074 9284 12111 13212 13926 16148 20889 24222 27852 36333 41778 48444 72666 77437 83556 145332 154874 232311 309748 464622 696933 851807 929244 1393866 1703614 2555421 2787732 3407228 5110842 7666263 10221684 15332526 30665052