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154116810385 = 5257874113721
BaseRepresentation
bin1000111110001000010…
…0111110011010010001
3112201210122222011001021
42033202010332122101
510011112400413020
6154444510035441
714064105162616
oct2174204763221
9481718864037
10154116810385
115a3a6a1578a
1225a514a8b81
13116c144c035
14766043050d
15402022a1aa
hex23e213e691

154116810385 has 16 divisors (see below), whose sum is σ = 185694556752. Its totient is φ = 122790707200.

The previous prime is 154116810383. The next prime is 154116810469. The reversal of 154116810385 is 583018611451.

It can be written as a sum of positive squares in 8 ways, for example, as 696537664 + 153420272721 = 26392^2 + 391689^2 .

It is not a de Polignac number, because 154116810385 - 21 = 154116810383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154116810383) 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, 11225325 + ... + 11239045.

It is an arithmetic number, because the mean of its divisors is an integer number (11605909797).

Almost surely, 2154116810385 is an apocalyptic number.

It is an amenable number.

154116810385 is a deficient number, since it is larger than the sum of its proper divisors (31577746367).

154116810385 is a wasteful number, since it uses less digits than its factorization.

154116810385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22724.

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 154116810385 in words is "one hundred fifty-four billion, one hundred sixteen million, eight hundred ten thousand, three hundred eighty-five".

Divisors: 1 5 257 1285 8741 13721 43705 68605 2246437 3526297 11232185 17631485 119935261 599676305 30823362077 154116810385