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30313318 = 272165237
BaseRepresentation
bin111001110100…
…0101101100110
32010001002001111
41303220231212
530230011233
63001415234
7515442010
oct163505546
963032044
1030313318
1116124932
12a19a51a
136384799
1440511b0
1529dbacd
hex1ce8b66

30313318 has 8 divisors (see below), whose sum is σ = 51965712. Its totient is φ = 12991416.

The previous prime is 30313313. The next prime is 30313321. The reversal of 30313318 is 81331303.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082605 + ... + 1082632.

It is an arithmetic number, because the mean of its divisors is an integer number (6495714).

Almost surely, 230313318 is an apocalyptic number.

30313318 is a deficient number, since it is larger than the sum of its proper divisors (21652394).

30313318 is a wasteful number, since it uses less digits than its factorization.

30313318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165246.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30313318 is about 5505.7531728184. The cubic root of 30313318 is about 311.8012307803.

The spelling of 30313318 in words is "thirty million, three hundred thirteen thousand, three hundred eighteen".

Divisors: 1 2 7 14 2165237 4330474 15156659 30313318