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30313122 = 2371275683
BaseRepresentation
bin111001110100…
…0101010100010
32010001001210020
41303220222202
530230004442
63001414310
7515441310
oct163505242
963031706
1030313122
1116124774
12a19a396
136384678
1440510b0
1529db9ec
hex1ce8aa2

30313122 has 32 divisors (see below), whose sum is σ = 69844992. Its totient is φ = 8591184.

The previous prime is 30313081. The next prime is 30313123. The reversal of 30313122 is 22131303.

It is not an unprimeable number, because it can be changed into a prime (30313123) 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, 2493 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (2182656).

Almost surely, 230313122 is an apocalyptic number.

30313122 is an abundant number, since it is smaller than the sum of its proper divisors (39531870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30313122 is a wasteful number, since it uses less digits than its factorization.

30313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 30313122 is about 5505.7353732267. The cubic root of 30313122 is about 311.8005587636.

Adding to 30313122 its reverse (22131303), we get a palindrome (52444425).

The spelling of 30313122 in words is "thirty million, three hundred thirteen thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 127 254 381 762 889 1778 2667 5334 5683 11366 17049 34098 39781 79562 119343 238686 721741 1443482 2165223 4330446 5052187 10104374 15156561 30313122