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1386830248 = 23414228141
BaseRepresentation
bin101001010101001…
…0101100110101000
310120122120021110021
41102222111212220
510320012031443
6345340330224
746236601606
oct12252254650
93518507407
101386830248
11651914101
12328543974
1319141a21b
14d2284876
1581b429ed
hex52a959a8

1386830248 has 16 divisors (see below), whose sum is σ = 2663729460. Its totient is φ = 676502400.

The previous prime is 1386830239. The next prime is 1386830251. The reversal of 1386830248 is 8420386831.

It can be written as a sum of positive squares in 2 ways, for example, as 1386668644 + 161604 = 37238^2 + 402^2 .

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, 2113743 + ... + 2114398.

Almost surely, 21386830248 is an apocalyptic number.

It is an amenable number.

1386830248 is a deficient number, since it is larger than the sum of its proper divisors (1276899212).

1386830248 is a wasteful number, since it uses less digits than its factorization.

1386830248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228188 (or 4228184 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 1386830248 is about 37240.1698170135. The cubic root of 1386830248 is about 1115.1700620708.

It can be divided in two parts, 138 and 6830248, that added together give a palindrome (6830386).

The spelling of 1386830248 in words is "one billion, three hundred eighty-six million, eight hundred thirty thousand, two hundred forty-eight".

Divisors: 1 2 4 8 41 82 164 328 4228141 8456282 16912564 33825128 173353781 346707562 693415124 1386830248