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55081434 = 239180239
BaseRepresentation
bin1101001000011…
…1100111011010
310211122102112010
43102013213122
5103100101214
65244330350
71236120162
oct322074732
9124572463
1055081434
1129101551
12165439b6
13b547285
14745b5a2
154c80659
hex34879da

55081434 has 8 divisors (see below), whose sum is σ = 110162880. Its totient is φ = 18360476.

The previous prime is 55081421. The next prime is 55081457. The reversal of 55081434 is 43418055.

It is a sphenic number, since it is the product of 3 distinct primes.

55081434 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4590114 + ... + 4590125.

It is an arithmetic number, because the mean of its divisors is an integer number (13770360).

Almost surely, 255081434 is an apocalyptic number.

55081434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55081434 is a wasteful number, since it uses less digits than its factorization.

55081434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9180244.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 55081434 is about 7421.6867355070. The cubic root of 55081434 is about 380.4828442048.

Adding to 55081434 its reverse (43418055), we get a palindrome (98499489).

The spelling of 55081434 in words is "fifty-five million, eighty-one thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9180239 18360478 27540717 55081434