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30632305 = 5112412311
BaseRepresentation
bin111010011011…
…0100101110001
32010122021121211
41310312211301
530320213210
63012320121
7521241004
oct164664561
963567554
1030632305
1116322560
12a313041
136466a32
1440d553b
152a5138a
hex1d36971

30632305 has 16 divisors (see below), whose sum is σ = 40284288. Its totient is φ = 22176000.

The previous prime is 30632299. The next prime is 30632321. The reversal of 30632305 is 50323603.

It is not a de Polignac number, because 30632305 - 29 = 30631793 is a prime.

It is a super-2 number, since 2×306323052 = 1876676219226050, which contains 22 as substring.

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, 12100 + ... + 14410.

It is an arithmetic number, because the mean of its divisors is an integer number (2517768).

Almost surely, 230632305 is an apocalyptic number.

It is an amenable number.

30632305 is a deficient number, since it is larger than the sum of its proper divisors (9651983).

30632305 is a wasteful number, since it uses less digits than its factorization.

30632305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 30632305 is about 5534.6458784641. The cubic root of 30632305 is about 312.8911113645.

Adding to 30632305 its reverse (50323603), we get a palindrome (80955908).

The spelling of 30632305 in words is "thirty million, six hundred thirty-two thousand, three hundred five".

Divisors: 1 5 11 55 241 1205 2311 2651 11555 13255 25421 127105 556951 2784755 6126461 30632305