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26318040 = 23357171997
BaseRepresentation
bin110010001100…
…1010011011000
31211112002120020
41210121103120
523214134130
62340030440
7436461660
oct144312330
954462506
1026318040
1113946151
128992420
1355b6108
1436d11a0
15249ce10
hex19194d8

26318040 has 256 divisors, whose sum is σ = 101606400. Its totient is φ = 5308416.

The previous prime is 26318011. The next prime is 26318053. The reversal of 26318040 is 4081362.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 26318040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 271272 + ... + 271368.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

Almost surely, 226318040 is an apocalyptic number.

26318040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26318040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50803200).

26318040 is an abundant number, since it is smaller than the sum of its proper divisors (75288360).

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

26318040 is a wasteful number, since it uses less digits than its factorization.

26318040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 26318040 is about 5130.1111099079. Note that the first 4 decimals coincide. The cubic root of 26318040 is about 297.4526535297.

The spelling of 26318040 in words is "twenty-six million, three hundred eighteen thousand, forty".