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30424428 = 22324192017
BaseRepresentation
bin111010000001…
…1110101101100
32010020201110200
41310003311230
530242040203
63004033500
7516413646
oct164036554
963221420
1030424428
11161a0361
12a232890
1363c3228
14407d896
152a0e9a3
hex1d03d6c

30424428 has 36 divisors (see below), whose sum is σ = 77127960. Its totient is φ = 10112256.

The previous prime is 30424411. The next prime is 30424477. The reversal of 30424428 is 82442403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14076 + ... + 16092.

Almost surely, 230424428 is an apocalyptic number.

It is an amenable number.

30424428 is an abundant number, since it is smaller than the sum of its proper divisors (46703532).

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

30424428 is a wasteful number, since it uses less digits than its factorization.

30424428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446 (or 2441 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 30424428 is about 5515.8342977287. The cubic root of 30424428 is about 312.1817235237.

The spelling of 30424428 in words is "thirty million, four hundred twenty-four thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 419 838 1257 1676 2017 2514 3771 4034 5028 6051 7542 8068 12102 15084 18153 24204 36306 72612 845123 1690246 2535369 3380492 5070738 7606107 10141476 15212214 30424428