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30021024 = 2531128429
BaseRepresentation
bin111001010000…
…1010110100000
32002111020002210
41302201112200
530141133044
62551242120
7513113565
oct162412640
962436083
1030021024
1115a45270
12a079340
1362b1727
143db686c
1529801b9
hex1ca15a0

30021024 has 48 divisors (see below), whose sum is σ = 85972320. Its totient is φ = 9096960.

The previous prime is 30021011. The next prime is 30021037. The reversal of 30021024 is 42012003.

It is an interprime number because it is at equal distance from previous prime (30021011) and next prime (30021037).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13159 + ... + 15270.

It is an arithmetic number, because the mean of its divisors is an integer number (1791090).

Almost surely, 230021024 is an apocalyptic number.

It is an amenable number.

30021024 is an abundant number, since it is smaller than the sum of its proper divisors (55951296).

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

30021024 is a wasteful number, since it uses less digits than its factorization.

30021024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28453 (or 28445 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30021024 is about 5479.1444587636. The cubic root of 30021024 is about 310.7958185975.

Adding to 30021024 its reverse (42012003), we get a palindrome (72033027).

The spelling of 30021024 in words is "thirty million, twenty-one thousand, twenty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 28429 56858 85287 113716 170574 227432 312719 341148 454864 625438 682296 909728 938157 1250876 1364592 1876314 2501752 2729184 3752628 5003504 7505256 10007008 15010512 30021024