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30300140 = 22513116539
BaseRepresentation
bin111001110010…
…1011111101100
32010000101222102
41303211133230
530224101030
63001234232
7515355413
oct163453754
963011872
1030300140
1116115a42
12a192978
13637b7a0
14404a47a
1529d7c45
hex1ce57ec

30300140 has 24 divisors (see below), whose sum is σ = 68525520. Its totient is φ = 11187648.

The previous prime is 30300121. The next prime is 30300143. The reversal of 30300140 is 4100303.

It is not an unprimeable number, because it can be changed into a prime (30300143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58010 + ... + 58529.

It is an arithmetic number, because the mean of its divisors is an integer number (2855230).

Almost surely, 230300140 is an apocalyptic number.

It is an amenable number.

30300140 is an abundant number, since it is smaller than the sum of its proper divisors (38225380).

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

30300140 is a wasteful number, since it uses less digits than its factorization.

30300140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116561 (or 116559 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30300140 is about 5504.5562945618. The cubic root of 30300140 is about 311.7560414878.

Adding to 30300140 its reverse (4100303), we get a palindrome (34400443).

The spelling of 30300140 in words is "thirty million, three hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 116539 233078 466156 582695 1165390 1515007 2330780 3030014 6060028 7575035 15150070 30300140