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1386716542 = 21394988189
BaseRepresentation
bin101001010100111…
…1001110101111110
310120122100111110221
41102221321311332
510314444412132
6345334051554
746235616241
oct12251716576
93518314427
101386716542
11651846732
123284a9bba
131913aa543
14d2255258
1581b1de97
hex52a79d7e

1386716542 has 8 divisors (see below), whose sum is σ = 2095039800. Its totient is φ = 688369944.

The previous prime is 1386716491. The next prime is 1386716543. The reversal of 1386716542 is 2456176831.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386716543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493817 + ... + 2494372.

It is an arithmetic number, because the mean of its divisors is an integer number (261879975).

Almost surely, 21386716542 is an apocalyptic number.

1386716542 is a deficient number, since it is larger than the sum of its proper divisors (708323258).

1386716542 is a wasteful number, since it uses less digits than its factorization.

1386716542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988330.

The product of its digits is 241920, while the sum is 43.

The square root of 1386716542 is about 37238.6431278048. The cubic root of 1386716542 is about 1115.1395836969.

The spelling of 1386716542 in words is "one billion, three hundred eighty-six million, seven hundred sixteen thousand, five hundred forty-two".

Divisors: 1 2 139 278 4988189 9976378 693358271 1386716542