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30355225245 = 325172910912553
BaseRepresentation
bin11100010001010011…
…111111101010011101
32220100111201012210200
4130101103333222131
5444131414201440
621540041454113
72123142104652
oct342123775235
986314635720
1030355225245
1111967808014
125a71aa1339
132b29b5a757
14167d6b5c29
15bc9de5c30
hex7114ffa9d

30355225245 has 96 divisors (see below), whose sum is σ = 58165192800. Its totient is φ = 14575583232.

The previous prime is 30355225231. The next prime is 30355225249. The reversal of 30355225245 is 54252255303.

It can be written as a sum of positive squares in 16 ways, for example, as 803552409 + 29551672836 = 28347^2 + 171906^2 .

It is not a de Polignac number, because 30355225245 - 25 = 30355225213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30355225249) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2411889 + ... + 2424441.

It is an arithmetic number, because the mean of its divisors is an integer number (605887425).

Almost surely, 230355225245 is an apocalyptic number.

It is an amenable number.

30355225245 is a deficient number, since it is larger than the sum of its proper divisors (27809967555).

30355225245 is a wasteful number, since it uses less digits than its factorization.

30355225245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12719 (or 12716 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

The spelling of 30355225245 in words is "thirty billion, three hundred fifty-five million, two hundred twenty-five thousand, two hundred forty-five".