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8001400055 = 511791841519
BaseRepresentation
bin1110111001110101…
…11010110011110111
3202122122001020102012
413130322322303313
5112341324300210
63401545434435
7402165530645
oct73472726367
922578036365
108001400055
113436644320
12167379ba1b
139a691345c
1455c950195
1531c6c5305
hex1dcebacf7

8001400055 has 16 divisors (see below), whose sum is σ = 10607155200. Its totient is φ = 5745536160.

The previous prime is 8001400021. The next prime is 8001400079. The reversal of 8001400055 is 5500041008.

It is not a de Polignac number, because 8001400055 - 216 = 8001334519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8001400055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916415 + ... + 925104.

It is an arithmetic number, because the mean of its divisors is an integer number (662947200).

Almost surely, 28001400055 is an apocalyptic number.

8001400055 is a deficient number, since it is larger than the sum of its proper divisors (2605755145).

8001400055 is a wasteful number, since it uses less digits than its factorization.

8001400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841614.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 8001400055 is about 89450.5453029773. The cubic root of 8001400055 is about 2000.1166644446.

The spelling of 8001400055 in words is "eight billion, one million, four hundred thousand, fifty-five".

Divisors: 1 5 11 55 79 395 869 4345 1841519 9207595 20256709 101283545 145480001 727400005 1600280011 8001400055