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26156140 = 2259471381
BaseRepresentation
bin110001111000…
…1110001101100
31211012212110221
41203301301230
523143444030
62332341124
7435215653
oct143616154
954185427
1026156140
111384554a
1289147a4
13555a50a
14368c19a
152469e7a
hex18f1c6c

26156140 has 24 divisors (see below), whose sum is σ = 55025712. Its totient is φ = 10443840.

The previous prime is 26156131. The next prime is 26156153. The reversal of 26156140 is 4165162.

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, 18250 + ... + 19630.

It is an arithmetic number, because the mean of its divisors is an integer number (2292738).

Almost surely, 226156140 is an apocalyptic number.

26156140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26156140 is an abundant number, since it is smaller than the sum of its proper divisors (28869572).

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

26156140 is a wasteful number, since it uses less digits than its factorization.

26156140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 26156140 is about 5114.3073822366. The cubic root of 26156140 is about 296.8414546030.

The spelling of 26156140 in words is "twenty-six million, one hundred fifty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 947 1381 1894 2762 3788 4735 5524 6905 9470 13810 18940 27620 1307807 2615614 5231228 6539035 13078070 26156140