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30985627 = 412233389
BaseRepresentation
bin111011000110…
…0110110011011
32011022020021211
41312030312123
530413020002
63024043551
7524242051
oct166146633
964266254
1030985627
1116543a62
12a4635b7
13655b7ba
1441881d1
152ac0dd7
hex1d8cd9b

30985627 has 8 divisors (see below), whose sum is σ = 31893120. Its totient is φ = 30085440.

The previous prime is 30985609. The next prime is 30985639. The reversal of 30985627 is 72658903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30985627 is a prime.

It is a super-3 number, since 3×309856273 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30985627.

It is not an unprimeable number, because it can be changed into a prime (30985657) 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, 7449 + ... + 10837.

It is an arithmetic number, because the mean of its divisors is an integer number (3986640).

Almost surely, 230985627 is an apocalyptic number.

30985627 is a deficient number, since it is larger than the sum of its proper divisors (907493).

30985627 is a wasteful number, since it uses less digits than its factorization.

30985627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 30985627 is about 5566.4734796817. The cubic root of 30985627 is about 314.0895082026.

The spelling of 30985627 in words is "thirty million, nine hundred eighty-five thousand, six hundred twenty-seven".

Divisors: 1 41 223 3389 9143 138949 755747 30985627