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30203130 = 2354572203
BaseRepresentation
bin111001100110…
…1110011111010
32002211110220110
41303031303322
530213000010
62555205150
7514502526
oct163156372
962743813
1030203130
111605a071
12a1467b6
136346599
144022d86
1529b9120
hex1ccdcfa

30203130 has 32 divisors (see below), whose sum is σ = 72679104. Its totient is φ = 8032896.

The previous prime is 30203099. The next prime is 30203153. The reversal of 30203130 is 3130203.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12609 + ... + 14811.

It is an arithmetic number, because the mean of its divisors is an integer number (2271222).

Almost surely, 230203130 is an apocalyptic number.

30203130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30203130 is an abundant number, since it is smaller than the sum of its proper divisors (42475974).

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

30203130 is a wasteful number, since it uses less digits than its factorization.

30203130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 30203130 is about 5495.7374391432. The cubic root of 30203130 is about 311.4229760599.

Adding to 30203130 its reverse (3130203), we get a palindrome (33333333).

The spelling of 30203130 in words is "thirty million, two hundred three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 457 914 1371 2203 2285 2742 4406 4570 6609 6855 11015 13218 13710 22030 33045 66090 1006771 2013542 3020313 5033855 6040626 10067710 15101565 30203130