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30075174 = 23271101233
BaseRepresentation
bin111001010111…
…0100100100110
32002120222101100
41302232210212
530144401144
62552340530
7513430503
oct162564446
962528340
1030075174
1115a81a18
12a0a4746
13630027c
143dcc4aa
152991269
hex1cae926

30075174 has 48 divisors (see below), whose sum is σ = 67021344. Its totient is φ = 9744000.

The previous prime is 30075173. The next prime is 30075187. The reversal of 30075174 is 47157003.

It is a super-2 number, since 2×300751742 = 1809032182260552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30075173) 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 23 ways as a sum of consecutive naturals, for example, 128962 + ... + 129194.

It is an arithmetic number, because the mean of its divisors is an integer number (1396278).

Almost surely, 230075174 is an apocalyptic number.

30075174 is an abundant number, since it is smaller than the sum of its proper divisors (36946170).

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

30075174 is a wasteful number, since it uses less digits than its factorization.

30075174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 30075174 is about 5484.0836973919. The cubic root of 30075174 is about 310.9825708880.

The spelling of 30075174 in words is "thirty million, seventy-five thousand, one hundred seventy-four".

Divisors: 1 2 3 6 9 18 71 101 142 202 213 233 303 426 466 606 639 699 909 1278 1398 1818 2097 4194 7171 14342 16543 21513 23533 33086 43026 47066 49629 64539 70599 99258 129078 141198 148887 211797 297774 423594 1670843 3341686 5012529 10025058 15037587 30075174