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30292471 = 112793169
BaseRepresentation
bin111001110001…
…1100111110111
32010000000110101
41303203213313
530223324341
63001134531
7515324146
oct163434767
963000411
1030292471
1116110200
12a18a447
136378151
14404775d
1529d5831
hex1ce39f7

30292471 has 12 divisors (see below), whose sum is σ = 33728800. Its totient is φ = 27181440.

The previous prime is 30292463. The next prime is 30292477. The reversal of 30292471 is 17429203.

It is not a de Polignac number, because 30292471 - 23 = 30292463 is a prime.

It is a super-3 number, since 3×302924713 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30292477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7975 + ... + 11143.

Almost surely, 230292471 is an apocalyptic number.

30292471 is a deficient number, since it is larger than the sum of its proper divisors (3436329).

30292471 is a wasteful number, since it uses less digits than its factorization.

30292471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30292471 is about 5503.8596457395. The cubic root of 30292471 is about 311.7297373319.

The spelling of 30292471 in words is "thirty million, two hundred ninety-two thousand, four hundred seventy-one".

Divisors: 1 11 79 121 869 3169 9559 34859 250351 383449 2753861 30292471