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1388383199 = 7228334351
BaseRepresentation
bin101001011000001…
…0000101111011111
310120202111011200222
41102300100233133
510320411230244
6345433511555
746256030300
oct12260205737
93522434628
101388383199
11652784935
12328b725bb
13191842028
14d256a7a7
1581d4cbee
hex52c10bdf

1388383199 has 6 divisors (see below), whose sum is σ = 1615058064. Its totient is φ = 1190042700.

The previous prime is 1388383193. The next prime is 1388383253. The reversal of 1388383199 is 9913838831.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-1388383199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1388383199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388383193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14167127 + ... + 14167224.

It is an arithmetic number, because the mean of its divisors is an integer number (269176344).

Almost surely, 21388383199 is an apocalyptic number.

1388383199 is a deficient number, since it is larger than the sum of its proper divisors (226674865).

1388383199 is an equidigital number, since it uses as much as digits as its factorization.

1388383199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28334365 (or 28334358 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 1388383199 is about 37261.0144655242. The cubic root of 1388383199 is about 1115.5861568432.

The spelling of 1388383199 in words is "one billion, three hundred eighty-eight million, three hundred eighty-three thousand, one hundred ninety-nine".

Divisors: 1 7 49 28334351 198340457 1388383199