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6478214128746 = 23171073187186247
BaseRepresentation
bin101111001000101001110…
…1001101110010001101010
3211221022101212210100002020
41132101103221232101222
51322114340304104441
621440014523245310
71236015120353103
oct136212351562152
924838355710066
106478214128746
112078438a97378
12887630979836
1337cb7bb1ba99
141857938913aa
15b37a7187e66
hex5e453a6e46a

6478214128746 has 64 divisors (see below), whose sum is σ = 13851201180672. Its totient is φ = 2012744132352.

The previous prime is 6478214128733. The next prime is 6478214128751.

It is a happy number.

6478214128746 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6478214128746.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34689795 + ... + 34876041.

It is an arithmetic number, because the mean of its divisors is an integer number (216425018448).

Almost surely, 26478214128746 is an apocalyptic number.

6478214128746 is an abundant number, since it is smaller than the sum of its proper divisors (7372987051926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6478214128746 is a wasteful number, since it uses less digits than its factorization.

6478214128746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189563.

The product of its digits is 28901376, while the sum is 60.

The spelling of 6478214128746 in words is "six trillion, four hundred seventy-eight billion, two hundred fourteen million, one hundred twenty-eight thousand, seven hundred forty-six".

Divisors: 1 2 3 6 17 34 51 102 107 214 321 642 1819 3187 3638 5457 6374 9561 10914 19122 54179 108358 162537 186247 325074 341009 372494 558741 682018 1023027 1117482 2046054 3166199 5797153 6332398 9498597 11594306 17391459 18997194 19928429 34782918 39856858 59785287 119570574 338783293 593569189 677566586 1016349879 1187138378 1780707567 2032699758 3561415134 10090676213 20181352426 30272028639 60544057278 63511903223 127023806446 190535709669 381071419338 1079702354791 2159404709582 3239107064373 6478214128746