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30531314515 = 5133171481743
BaseRepresentation
bin11100011011110011…
…101110001101010011
32220210210001110212111
4130123303232031103
51000012004031030
622005332010151
72130410614522
oct343363561523
986723043774
1030531314515
1111a48149539
125b00a60957
132b574925a0
141698c324b9
15bda5ca62a
hex71bcee353

30531314515 has 16 divisors (see below), whose sum is σ = 39580345728. Its totient is φ = 22475062656.

The previous prime is 30531314507. The next prime is 30531314549. The reversal of 30531314515 is 51541313503.

It is a cyclic number.

It is not a de Polignac number, because 30531314515 - 23 = 30531314507 is a prime.

It is a super-2 number, since 2×305313145152 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720267 + ... + 761476.

It is an arithmetic number, because the mean of its divisors is an integer number (2473771608).

Almost surely, 230531314515 is an apocalyptic number.

30531314515 is a deficient number, since it is larger than the sum of its proper divisors (9049031213).

30531314515 is a wasteful number, since it uses less digits than its factorization.

30531314515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482078.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 30531314515 in words is "thirty billion, five hundred thirty-one million, three hundred fourteen thousand, five hundred fifteen".

Divisors: 1 5 13 65 317 1585 4121 20605 1481743 7408715 19262659 96313295 469712531 2348562655 6106262903 30531314515