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26735140 = 2259713781
BaseRepresentation
bin110010111111…
…1001000100100
31212022021201101
41211333020210
523321011030
62353005444
7443150005
oct145771044
955267641
1026735140
1114100563
128b53884
135700c13
14379d1ac
1525317ca
hex197f224

26735140 has 24 divisors (see below), whose sum is σ = 56726712. Its totient is φ = 10583040.

The previous prime is 26735123. The next prime is 26735173. The reversal of 26735140 is 4153762.

26735140 = T425 + T426 + ... + T618.

It can be written as a sum of positive squares in 4 ways, for example, as 2842596 + 23892544 = 1686^2 + 4888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26735099 and 26735108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4951 + ... + 8830.

It is an arithmetic number, because the mean of its divisors is an integer number (2363613).

Almost surely, 226735140 is an apocalyptic number.

26735140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26735140 is an abundant number, since it is smaller than the sum of its proper divisors (29991572).

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

26735140 is a wasteful number, since it uses less digits than its factorization.

26735140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13887 (or 13885 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 26735140 is about 5170.6034464074. The cubic root of 26735140 is about 299.0158118132.

The spelling of 26735140 in words is "twenty-six million, seven hundred thirty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 13781 27562 55124 68905 137810 275620 1336757 2673514 5347028 6683785 13367570 26735140