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30415142345555 = 5112324043590787
BaseRepresentation
bin1101110101001100100111…
…10000010101101101010011
310222200122210120020222120002
412322212103300111231103
512441310202420024210
6144404305024240215
76256264403166242
oct672462360255523
9128618716228502
1030415142345555
119766a97a29820
1234b27a977006b
1313c819bc45476
1477215a628959
1537b27ac534a5
hex1ba993c15b53

30415142345555 has 16 divisors (see below), whose sum is σ = 41547324881664. Its totient is φ = 21158359891680.

The previous prime is 30415142345461. The next prime is 30415142345557. The reversal of 30415142345555 is 55554324151403.

It is not a de Polignac number, because 30415142345555 - 218 = 30415142083411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30415142345557) 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, 12021794129 + ... + 12021796658.

It is an arithmetic number, because the mean of its divisors is an integer number (2596707805104).

Almost surely, 230415142345555 is an apocalyptic number.

30415142345555 is a deficient number, since it is larger than the sum of its proper divisors (11132182536109).

30415142345555 is a wasteful number, since it uses less digits than its factorization.

30415142345555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24043590826.

The product of its (nonzero) digits is 3600000, while the sum is 47.

Adding to 30415142345555 its reverse (55554324151403), we get a palindrome (85969466496958).

The spelling of 30415142345555 in words is "thirty trillion, four hundred fifteen billion, one hundred forty-two million, three hundred forty-five thousand, five hundred fifty-five".

Divisors: 1 5 11 23 55 115 253 1265 24043590787 120217953935 264479498657 553002588101 1322397493285 2765012940505 6083028469111 30415142345555