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30319955517 = 371971467497
BaseRepresentation
bin11100001111001101…
…011100111000111101
32220021001100022211110
4130033031130320331
5444043402034032
621532341512233
72122233240525
oct341715347075
986231308743
1030319955517
1111949908385
125a62112679
132b2275bca7
141678b34685
15bc6c7a7cc
hex70f35ce3d

30319955517 has 16 divisors (see below), whose sum is σ = 41418663552. Its totient is φ = 19723146240.

The previous prime is 30319955507. The next prime is 30319955531. The reversal of 30319955517 is 71555991303.

It is not a de Polignac number, because 30319955517 - 215 = 30319922749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30319955507) 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, 713088 + ... + 754409.

It is an arithmetic number, because the mean of its divisors is an integer number (2588666472).

Almost surely, 230319955517 is an apocalyptic number.

It is an amenable number.

30319955517 is a deficient number, since it is larger than the sum of its proper divisors (11098708035).

30319955517 is a wasteful number, since it uses less digits than its factorization.

30319955517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467668.

The product of its (nonzero) digits is 637875, while the sum is 48.

The spelling of 30319955517 in words is "thirty billion, three hundred nineteen million, nine hundred fifty-five thousand, five hundred seventeen".

Divisors: 1 3 71 97 213 291 6887 20661 1467497 4402491 104192287 142347209 312576861 427041627 10106651839 30319955517