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385714859489 = 1978311949719
BaseRepresentation
bin1011001110011100110…
…01011010110111100001
31100212121010120001011122
411213032121122313201
522304421001000424
6453110040022025
736603242132021
oct5471631326741
91325533501148
10385714859489
11139642a89953
1262907161915
132a4acc3508b
1414950ca3a81
15a07773e45e
hex59ce65ade1

385714859489 has 4 divisors (see below), whose sum is σ = 385717007040. Its totient is φ = 385712711940.

The previous prime is 385714859471. The next prime is 385714859549. The reversal of 385714859489 is 984958417583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-385714859489 is a prime.

It is a super-2 number, since 2×3857148594892 (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 (385714889489) 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, 777029 + ... + 1172690.

It is an arithmetic number, because the mean of its divisors is an integer number (96429251760).

Almost surely, 2385714859489 is an apocalyptic number.

It is an amenable number.

385714859489 is a deficient number, since it is larger than the sum of its proper divisors (2147551).

385714859489 is a wasteful number, since it uses less digits than its factorization.

385714859489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147550.

The product of its digits is 348364800, while the sum is 71.

The spelling of 385714859489 in words is "three hundred eighty-five billion, seven hundred fourteen million, eight hundred fifty-nine thousand, four hundred eighty-nine".

Divisors: 1 197831 1949719 385714859489