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248431492 = 22109569797
BaseRepresentation
bin11101100111011…
…00001110000100
3122022110121221101
432303230032010
51002044301432
640352425444
76104430031
oct1663541604
9568417841
10248431492
11118262291
126b248284
133c6137aa
1424dcc388
1516c244e7
hexecec384

248431492 has 12 divisors (see below), whose sum is σ = 438744460. Its totient is φ = 123075936.

The previous prime is 248431481. The next prime is 248431493. The reversal of 248431492 is 294134842.

248431492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 90326016 + 158105476 = 9504^2 + 12574^2 .

It is not an unprimeable number, because it can be changed into a prime (248431493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284463 + ... + 285334.

Almost surely, 2248431492 is an apocalyptic number.

It is an amenable number.

248431492 is a deficient number, since it is larger than the sum of its proper divisors (190312968).

248431492 is a wasteful number, since it uses less digits than its factorization.

248431492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569910 (or 569908 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 248431492 is about 15761.7096788388. The cubic root of 248431492 is about 628.6402958685.

It can be divided in two parts, 24843 and 1492, that added together give a triangular number (26335 = T229).

The spelling of 248431492 in words is "two hundred forty-eight million, four hundred thirty-one thousand, four hundred ninety-two".

Divisors: 1 2 4 109 218 436 569797 1139594 2279188 62107873 124215746 248431492