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78230368005 = 3547110965061
BaseRepresentation
bin100100011011011100…
…1001010111100000101
321110221000020110021020
41020312321022330011
52240203433234010
655534420141353
75436423104436
oct1106671127405
9243830213236
1078230368005
11301a50043a9
12131b3237859
1374b96183aa
143b01b2948d
15207ce63470
hex1236e4af05

78230368005 has 16 divisors (see below), whose sum is σ = 127831751424. Its totient is φ = 40835142080.

The previous prime is 78230368003. The next prime is 78230368031. The reversal of 78230368005 is 50086303287.

It is not a de Polignac number, because 78230368005 - 21 = 78230368003 is a prime.

It is a super-2 number, since 2×782303680052 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78230368003) 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, 55481826 + ... + 55483235.

It is an arithmetic number, because the mean of its divisors is an integer number (7989484464).

Almost surely, 278230368005 is an apocalyptic number.

It is an amenable number.

78230368005 is a deficient number, since it is larger than the sum of its proper divisors (49601383419).

78230368005 is a wasteful number, since it uses less digits than its factorization.

78230368005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110965116.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 78230368005 in words is "seventy-eight billion, two hundred thirty million, three hundred sixty-eight thousand, five".

Divisors: 1 3 5 15 47 141 235 705 110965061 332895183 554825305 1664475915 5215357867 15646073601 26076789335 78230368005