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30375071 = 314322787
BaseRepresentation
bin111001111011…
…1110010011111
32010011012202122
41303313302133
530234000241
63003013155
7516120026
oct163676237
963135678
1030375071
1116167271
12a20a1bb
1363a691c
1440698bd
152a0004b
hex1cf7c9f

30375071 has 8 divisors (see below), whose sum is σ = 32085504. Its totient is φ = 28710360.

The previous prime is 30375061. The next prime is 30375083. The reversal of 30375071 is 17057303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30375071 - 214 = 30358687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30375071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30375001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10061 + ... + 12726.

It is an arithmetic number, because the mean of its divisors is an integer number (4010688).

Almost surely, 230375071 is an apocalyptic number.

30375071 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30375071 is a deficient number, since it is larger than the sum of its proper divisors (1710433).

30375071 is a wasteful number, since it uses less digits than its factorization.

30375071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22861.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 30375071 is about 5511.3583625092. The cubic root of 30375071 is about 312.0128165620.

The spelling of 30375071 in words is "thirty million, three hundred seventy-five thousand, seventy-one".

Divisors: 1 31 43 1333 22787 706397 979841 30375071