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1345078171830 = 23544835939061
BaseRepresentation
bin10011100100101100111…
…010000001100010110110
311202120212210212211212210
4103210230322001202312
5134014210002444310
62505530445154250
7166115201550021
oct23445472014266
94676783784783
101345078171830
1147949861a958
12198827b5b986
1399ac02787b3
14491603661b8
1524ec6655820
hex1392ce818b6

1345078171830 has 16 divisors (see below), whose sum is σ = 3228187612464. Its totient is φ = 358687512480.

The previous prime is 1345078171799. The next prime is 1345078171837. The reversal of 1345078171830 is 381718705431.

It is a self number, because there is not a number n which added to its sum of digits gives 1345078171830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345078171837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22417969501 + ... + 22417969560.

It is an arithmetic number, because the mean of its divisors is an integer number (201761725779).

Almost surely, 21345078171830 is an apocalyptic number.

1345078171830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345078171830 is an abundant number, since it is smaller than the sum of its proper divisors (1883109440634).

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

1345078171830 is a wasteful number, since it uses less digits than its factorization.

1345078171830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44835939071.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 1345078171830 in words is "one trillion, three hundred forty-five billion, seventy-eight million, one hundred seventy-one thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 44835939061 89671878122 134507817183 224179695305 269015634366 448359390610 672539085915 1345078171830