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30955111 = 1110092789
BaseRepresentation
bin111011000010…
…1011001100111
32011020200102121
41312011121213
530411030421
63023250411
7524054065
oct166053147
964220377
1030955111
1116523040
12a449a07
13654a945
14417b035
152ab6d41
hex1d85667

30955111 has 8 divisors (see below), whose sum is σ = 33814800. Its totient is φ = 28103040.

The previous prime is 30955109. The next prime is 30955129. The reversal of 30955111 is 11155903.

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

It is a cyclic number.

It is not a de Polignac number, because 30955111 - 21 = 30955109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30955411) 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, 9705 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (4226850).

Almost surely, 230955111 is an apocalyptic number.

30955111 is a deficient number, since it is larger than the sum of its proper divisors (2859689).

30955111 is a wasteful number, since it uses less digits than its factorization.

30955111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3809.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 30955111 is about 5563.7317512619. The cubic root of 30955111 is about 313.9863646425.

The spelling of 30955111 in words is "thirty million, nine hundred fifty-five thousand, one hundred eleven".

Divisors: 1 11 1009 2789 11099 30679 2814101 30955111