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354163421537 = 2002117689597
BaseRepresentation
bin1010010011101011100…
…10001111000101100001
31020212011020221221000122
411021311302033011201
521300311313442122
6430411143130025
734405333261322
oct5116562170541
91225136857018
10354163421537
111272220225a2
1258780743915
132752230ac73
14131da7a6449
15932c80a142
hex5275c8f161

354163421537 has 4 divisors (see below), whose sum is σ = 354181131156. Its totient is φ = 354145711920.

The previous prime is 354163421461. The next prime is 354163421567. The reversal of 354163421537 is 735124361453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 735124361453 = 2526912909183.

It can be written as a sum of positive squares in 2 ways, for example, as 57540495376 + 296622926161 = 239876^2 + 544631^2 .

It is a cyclic number.

It is not a de Polignac number, because 354163421537 - 220 = 354162372961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354163421567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8824778 + ... + 8864819.

It is an arithmetic number, because the mean of its divisors is an integer number (88545282789).

Almost surely, 2354163421537 is an apocalyptic number.

It is an amenable number.

354163421537 is a deficient number, since it is larger than the sum of its proper divisors (17709619).

354163421537 is a wasteful number, since it uses less digits than its factorization.

354163421537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17709618.

The product of its digits is 907200, while the sum is 44.

The spelling of 354163421537 in words is "three hundred fifty-four billion, one hundred sixty-three million, four hundred twenty-one thousand, five hundred thirty-seven".

Divisors: 1 20021 17689597 354163421537