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30011340 = 22352232243
BaseRepresentation
bin111001001111…
…0111111001100
32002110201211010
41302132333030
530140330330
62551125220
7513043422
oct162367714
962421733
1030011340
1115a38a67
12a073810
1362aa1b8
143db3112
15297c3b0
hex1c9efcc

30011340 has 48 divisors (see below), whose sum is σ = 84446208. Its totient is φ = 7963584.

The previous prime is 30011321. The next prime is 30011347. The reversal of 30011340 is 4311003.

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

It is not an unprimeable number, because it can be changed into a prime (30011347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12259 + ... + 14501.

It is an arithmetic number, because the mean of its divisors is an integer number (1759296).

Almost surely, 230011340 is an apocalyptic number.

30011340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30011340 is an abundant number, since it is smaller than the sum of its proper divisors (54434868).

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

30011340 is a wasteful number, since it uses less digits than its factorization.

30011340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30011340 is about 5478.2606728778. The cubic root of 30011340 is about 310.7623967930.

Adding to 30011340 its reverse (4311003), we get a palindrome (34322343).

The spelling of 30011340 in words is "thirty million, eleven thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 223 446 669 892 1115 1338 2230 2243 2676 3345 4460 4486 6690 6729 8972 11215 13380 13458 22430 26916 33645 44860 67290 134580 500189 1000378 1500567 2000756 2500945 3001134 5001890 6002268 7502835 10003780 15005670 30011340