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30630853 = 1159109433
BaseRepresentation
bin111010011011…
…0001111000101
32010122012122001
41310312033011
530320141403
63012305301
7521233531
oct164661705
963565561
1030630853
1116321460
12a312231
136466186
1440d4bc1
152a50c1d
hex1d363c5

30630853 has 16 divisors (see below), whose sum is σ = 34372800. Its totient is φ = 27060480.

The previous prime is 30630851. The next prime is 30630877. The reversal of 30630853 is 35803603.

It is a cyclic number.

It is not a de Polignac number, because 30630853 - 21 = 30630851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30630851) 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, 70525 + ... + 70957.

It is an arithmetic number, because the mean of its divisors is an integer number (2148300).

Almost surely, 230630853 is an apocalyptic number.

It is an amenable number.

30630853 is a deficient number, since it is larger than the sum of its proper divisors (3741947).

30630853 is a wasteful number, since it uses less digits than its factorization.

30630853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30630853 is about 5534.5147032057. The cubic root of 30630853 is about 312.8861675090.

The spelling of 30630853 in words is "thirty million, six hundred thirty thousand, eight hundred fifty-three".

Divisors: 1 11 59 109 433 649 1199 4763 6431 25547 47197 70741 281017 519167 2784623 30630853