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44487781287274 = 21315173112770613
BaseRepresentation
bin10100001110110000111100…
…11001101000010101101010
312211111222201222011111200101
422013120132121220111222
521312341434002143044
6234341223220100014
712241064456430163
oct1207303631502552
9184458658144611
1044487781287274
11131a2186819446
124ba6043b3460a
131ba9244c6c920
14adb311d6a76a
15522368c85cd4
hex28761e66856a

44487781287274 has 16 divisors (see below), whose sum is σ = 71869614467112. Its totient is φ = 20531468703168.

The previous prime is 44487781287211. The next prime is 44487781287331. The reversal of 44487781287274 is 47278218778444.

It can be written as a sum of positive squares in 4 ways, for example, as 26949149240049 + 17538632047225 = 5191257^2 + 4187915^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44487781287197 and 44487781287206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55990809 + ... + 56779804.

Almost surely, 244487781287274 is an apocalyptic number.

44487781287274 is a deficient number, since it is larger than the sum of its proper divisors (27381833179838).

44487781287274 is a wasteful number, since it uses less digits than its factorization.

44487781287274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112785801.

The product of its digits is 1258815488, while the sum is 73.

The spelling of 44487781287274 in words is "forty-four trillion, four hundred eighty-seven billion, seven hundred eighty-one million, two hundred eighty-seven thousand, two hundred seventy-four".

Divisors: 1 2 13 26 15173 30346 197249 394498 112770613 225541226 1466017969 2932035938 1711068511049 3422137022098 22243890643637 44487781287274