Search a number
-
+
385385761427 = 3971410768813
BaseRepresentation
bin1011001101110101100…
…10000000101010010011
31100211202012022010111112
411212322302000222103
522303232223331202
6453013242203535
736562134631322
oct5467262005223
91324665263445
10385385761427
11139494240687
1262834ab35ab
132a4599b99b4
141491d2b80b9
15a0588d3b52
hex59bac80a93

385385761427 has 8 divisors (see below), whose sum is σ = 386389508976. Its totient is φ = 384382180512.

The previous prime is 385385761421. The next prime is 385385761429. The reversal of 385385761427 is 724167583583.

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

It is a cyclic number.

It is not a de Polignac number, because 385385761427 - 218 = 385385499283 is a prime.

It is a super-2 number, since 2×3853857614272 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385385761421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5566073 + ... + 5634885.

It is an arithmetic number, because the mean of its divisors is an integer number (48298688622).

Almost surely, 2385385761427 is an apocalyptic number.

385385761427 is a deficient number, since it is larger than the sum of its proper divisors (1003747549).

385385761427 is a wasteful number, since it uses less digits than its factorization.

385385761427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83317.

The product of its digits is 33868800, while the sum is 59.

The spelling of 385385761427 in words is "three hundred eighty-five billion, three hundred eighty-five million, seven hundred sixty-one thousand, four hundred twenty-seven".

Divisors: 1 397 14107 68813 5600479 27318761 970744991 385385761427