Search a number
-
+
1386545942 = 21740780763
BaseRepresentation
bin101001010100101…
…0000001100010110
310120122000211110102
41102221100030112
510314423432232
6345330254102
746234305665
oct12251201426
93518024412
101386545942
1165173a541
12328427332
1319134a9b2
14d220cddc
1581ad8662
hex52a50316

1386545942 has 8 divisors (see below), whose sum is σ = 2202161256. Its totient is φ = 652492192.

The previous prime is 1386545929. The next prime is 1386545947. The reversal of 1386545942 is 2495456831.

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 (1386545947) 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, 20390348 + ... + 20390415.

It is an arithmetic number, because the mean of its divisors is an integer number (275270157).

Almost surely, 21386545942 is an apocalyptic number.

1386545942 is a deficient number, since it is larger than the sum of its proper divisors (815615314).

1386545942 is a wasteful number, since it uses less digits than its factorization.

1386545942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40780782.

The product of its digits is 1036800, while the sum is 47.

The square root of 1386545942 is about 37236.3524260903. The cubic root of 1386545942 is about 1115.0938520208.

The spelling of 1386545942 in words is "one billion, three hundred eighty-six million, five hundred forty-five thousand, nine hundred forty-two".

Divisors: 1 2 17 34 40780763 81561526 693272971 1386545942