Search a number
-
+
1385930715 = 35137107337
BaseRepresentation
bin101001010011011…
…1001111111011011
310120120212120112020
41102212321333123
510314244240330
6345305145523
746226134221
oct12246717733
93516776466
101385930715
1165135a294
1232818b2a3
13191193960
14d20ccb11
1581a16210
hex529b9fdb

1385930715 has 16 divisors (see below), whose sum is σ = 2388065568. Its totient is φ = 682304256.

The previous prime is 1385930713. The next prime is 1385930731. The reversal of 1385930715 is 5170395831.

It is not a de Polignac number, because 1385930715 - 21 = 1385930713 is a prime.

It is a super-2 number, since 2×13859307152 = 3841607893560822450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1385930713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3553474 + ... + 3553863.

It is an arithmetic number, because the mean of its divisors is an integer number (149254098).

Almost surely, 21385930715 is an apocalyptic number.

1385930715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1385930715 is a deficient number, since it is larger than the sum of its proper divisors (1002134853).

1385930715 is a wasteful number, since it uses less digits than its factorization.

1385930715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107358.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 1385930715 is about 37228.0904022755. The cubic root of 1385930715 is about 1114.9289008000.

The spelling of 1385930715 in words is "one billion, three hundred eighty-five million, nine hundred thirty thousand, seven hundred fifteen".

Divisors: 1 3 5 13 15 39 65 195 7107337 21322011 35536685 92395381 106610055 277186143 461976905 1385930715