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248003855 = 5114509161
BaseRepresentation
bin11101100100000…
…11110100001111
3122021122220022222
432302003310033
51001442110410
640335325555
76100666211
oct1662036417
9567586288
10248003855
11117a9aa70
126b0808bb
133c4c3c58
1424d1a5b1
1516b8c955
hexec83d0f

248003855 has 8 divisors (see below), whose sum is σ = 324659664. Its totient is φ = 180366400.

The previous prime is 248003843. The next prime is 248003869. The reversal of 248003855 is 558300842.

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

It is not a de Polignac number, because 248003855 - 210 = 248002831 is a prime.

It is a super-2 number, since 2×2480038552 = 123011824189722050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 2254526 + ... + 2254635.

It is an arithmetic number, because the mean of its divisors is an integer number (40582458).

Almost surely, 2248003855 is an apocalyptic number.

248003855 is a deficient number, since it is larger than the sum of its proper divisors (76655809).

248003855 is a wasteful number, since it uses less digits than its factorization.

248003855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509177.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 248003855 is about 15748.1381439204. The cubic root of 248003855 is about 628.2793858438.

The spelling of 248003855 in words is "two hundred forty-eight million, three thousand, eight hundred fifty-five".

Divisors: 1 5 11 55 4509161 22545805 49600771 248003855