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30286074 = 2371355469
BaseRepresentation
bin111001110001…
…0000011111010
32002222200200110
41303202003322
530223123244
63001045150
7515266410
oct163420372
962880613
1030286074
1116106415
12a1867b6
136375270
1440452b0
1529d39b9
hex1ce20fa

30286074 has 32 divisors (see below), whose sum is σ = 74551680. Its totient is φ = 7987392.

The previous prime is 30286049. The next prime is 30286079. The reversal of 30286074 is 47068203.

It is a super-3 number, since 3×302860743 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30286079) 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 15 ways as a sum of consecutive naturals, for example, 27189 + ... + 28280.

It is an arithmetic number, because the mean of its divisors is an integer number (2329740).

Almost surely, 230286074 is an apocalyptic number.

30286074 is an abundant number, since it is smaller than the sum of its proper divisors (44265606).

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

30286074 is a wasteful number, since it uses less digits than its factorization.

30286074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55494.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 30286074 is about 5503.2784774169. The cubic root of 30286074 is about 311.7077926545.

The spelling of 30286074 in words is "thirty million, two hundred eighty-six thousand, seventy-four".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 55469 110938 166407 332814 388283 721097 776566 1164849 1442194 2163291 2329698 4326582 5047679 10095358 15143037 30286074