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27550408302740 = 2255325990951229
BaseRepresentation
bin1100100001110100101000…
…10011001110000010010100
310121112210102022202021222002
412100322110103032002110
512102341214011141430
6134332252143454432
75542310541456311
oct620722423160224
9117483368667862
1027550408302740
118862076281804
12310b553bb7418
13124acb92875ab
146b363832dd08
1532b9b1811845
hex190e944ce094

27550408302740 has 24 divisors (see below), whose sum is σ = 58947477389640. Its totient is φ = 10812235710848.

The previous prime is 27550408302619. The next prime is 27550408302757. The reversal of 27550408302740 is 4720380405572.

It can be written as a sum of positive squares in 4 ways, for example, as 5670503963524 + 21879904339216 = 2381282^2 + 4677596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12995474555 + ... + 12995476674.

It is an arithmetic number, because the mean of its divisors is an integer number (2456144891235).

Almost surely, 227550408302740 is an apocalyptic number.

27550408302740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27550408302740 is an abundant number, since it is smaller than the sum of its proper divisors (31397069086900).

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

27550408302740 is a wasteful number, since it uses less digits than its factorization.

27550408302740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25990951291 (or 25990951289 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 47.

The spelling of 27550408302740 in words is "twenty-seven trillion, five hundred fifty billion, four hundred eight million, three hundred two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 25990951229 51981902458 103963804916 129954756145 259909512290 519819024580 1377520415137 2755040830274 5510081660548 6887602075685 13775204151370 27550408302740