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115530441553 = 212115446723
BaseRepresentation
bin110101110011000100…
…1101010001101010001
3102001012111220111221201
41223212021222031101
53343101243112203
6125023550151201
711226644356522
oct1534611521521
9361174814851
10115530441553
1144aa5a1676a
121a482ab2501
13ab8220b827
14583d8c2849
1530128cbe1d
hex1ae626a351

115530441553 has 4 divisors (see below), whose sum is σ = 115535909488. Its totient is φ = 115524973620.

The previous prime is 115530441539. The next prime is 115530441557. The reversal of 115530441553 is 355144035511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355144035511 = 1979179456309.

It is a cyclic number.

It is not a de Polignac number, because 115530441553 - 29 = 115530441041 is a prime.

It is a super-2 number, since 2×1155304415532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115530441557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702151 + ... + 2744572.

It is an arithmetic number, because the mean of its divisors is an integer number (28883977372).

Almost surely, 2115530441553 is an apocalyptic number.

It is an amenable number.

115530441553 is a deficient number, since it is larger than the sum of its proper divisors (5467935).

115530441553 is an equidigital number, since it uses as much as digits as its factorization.

115530441553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467934.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 115530441553 in words is "one hundred fifteen billion, five hundred thirty million, four hundred forty-one thousand, five hundred fifty-three".

Divisors: 1 21211 5446723 115530441553