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30207968 = 257134857
BaseRepresentation
bin111001100111…
…0111111100000
32002211201112122
41303032333200
530213123333
62555243412
7514522610
oct163167740
962751478
1030207968
111606276a
12a149568
13634884b
144024a40
1529ba798
hex1ccefe0

30207968 has 24 divisors (see below), whose sum is σ = 67968432. Its totient is φ = 12946176.

The previous prime is 30207959. The next prime is 30207977. The reversal of 30207968 is 86970203.

It is an interprime number because it is at equal distance from previous prime (30207959) and next prime (30207977).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67205 + ... + 67652.

It is an arithmetic number, because the mean of its divisors is an integer number (2832018).

Almost surely, 230207968 is an apocalyptic number.

It is an amenable number.

30207968 is an abundant number, since it is smaller than the sum of its proper divisors (37760464).

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

30207968 is a wasteful number, since it uses less digits than its factorization.

30207968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134874 (or 134866 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 30207968 is about 5496.1775808283. The cubic root of 30207968 is about 311.4396032982.

The spelling of 30207968 in words is "thirty million, two hundred seven thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 134857 269714 539428 943999 1078856 1887998 2157712 3775996 4315424 7551992 15103984 30207968