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30310553 = 713397839
BaseRepresentation
bin111001110100…
…0000010011001
32010000221021002
41303220002121
530224414203
63001354345
7515430650
oct163500231
963027232
1030310553
1116122849
12a1989b5
136383450
144050197
1529dad88
hex1ce8099

30310553 has 16 divisors (see below), whose sum is σ = 37443840. Its totient is φ = 23893056.

The previous prime is 30310543. The next prime is 30310559. The reversal of 30310553 is 35501303.

It is a cyclic number.

It is not a de Polignac number, because 30310553 - 210 = 30309529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30310559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35708 + ... + 36546.

It is an arithmetic number, because the mean of its divisors is an integer number (2340240).

Almost surely, 230310553 is an apocalyptic number.

It is an amenable number.

30310553 is a deficient number, since it is larger than the sum of its proper divisors (7133287).

30310553 is a wasteful number, since it uses less digits than its factorization.

30310553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 30310553 is about 5505.5020661153. The cubic root of 30310553 is about 311.7917502761.

Adding to 30310553 its reverse (35501303), we get a palindrome (65811856).

The spelling of 30310553 in words is "thirty million, three hundred ten thousand, five hundred fifty-three".

Divisors: 1 7 13 91 397 839 2779 5161 5873 10907 36127 76349 333083 2331581 4330079 30310553