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248789242 = 2139568817
BaseRepresentation
bin11101101010000…
…11100011111010
3122100010210200101
432311003203322
51002142223432
640404230014
76110450032
oct1665034372
9570123611
10248789242
11118487049
126b39b30a
133c70a590
14250828c2
1516c954e7
hexed438fa

248789242 has 8 divisors (see below), whose sum is σ = 401890356. Its totient is φ = 114825792.

The previous prime is 248789213. The next prime is 248789257. The reversal of 248789242 is 242987842.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 243640881 + 5148361 = 15609^2 + 2269^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 248789192 and 248789201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4784383 + ... + 4784434.

Almost surely, 2248789242 is an apocalyptic number.

248789242 is a deficient number, since it is larger than the sum of its proper divisors (153101114).

248789242 is a wasteful number, since it uses less digits than its factorization.

248789242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9568832.

The product of its digits is 516096, while the sum is 46.

The square root of 248789242 is about 15773.0543015613. The cubic root of 248789242 is about 628.9419057780.

The spelling of 248789242 in words is "two hundred forty-eight million, seven hundred eighty-nine thousand, two hundred forty-two".

Divisors: 1 2 13 26 9568817 19137634 124394621 248789242