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248478115 = 5311159793
BaseRepresentation
bin11101100111101…
…11100110100011
3122022112222220011
432303313212203
51002102244430
640353425351
76105012664
oct1663674643
9568488804
10248478115
11118294316
126b26b257
133c62ba92
142500136b
1516c3322a
hexecf79a3

248478115 has 8 divisors (see below), whose sum is σ = 299134368. Its totient is φ = 198142080.

The previous prime is 248478107. The next prime is 248478149. The reversal of 248478115 is 511874842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 248478115 - 23 = 248478107 is a prime.

It is a Duffinian number.

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, 78342 + ... + 81451.

It is an arithmetic number, because the mean of its divisors is an integer number (37391796).

Almost surely, 2248478115 is an apocalyptic number.

248478115 is a deficient number, since it is larger than the sum of its proper divisors (50656253).

248478115 is a wasteful number, since it uses less digits than its factorization.

248478115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160109.

The product of its digits is 71680, while the sum is 40.

The square root of 248478115 is about 15763.1886051014. The cubic root of 248478115 is about 628.6796189337.

The spelling of 248478115 in words is "two hundred forty-eight million, four hundred seventy-eight thousand, one hundred fifteen".

Divisors: 1 5 311 1555 159793 798965 49695623 248478115