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26875000 = 235743
BaseRepresentation
bin110011010000…
…1010001111000
31212120101120101
41212201101320
523340000000
62400005144
7444301525
oct146412170
955511511
1026875000
1114196649
1290007b4
13574c789
1437d814c
15255ce6a
hex19a1478

26875000 has 64 divisors (see below), whose sum is σ = 64452960. Its totient is φ = 10500000.

The previous prime is 26874979. The next prime is 26875003. The reversal of 26875000 is 57862.

It is a self number, because there is not a number n which added to its sum of digits gives 26875000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26875003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 624979 + ... + 625021.

Almost surely, 226875000 is an apocalyptic number.

26875000 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 26875000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32226480).

26875000 is an abundant number, since it is smaller than the sum of its proper divisors (37577960).

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

26875000 is an frugal number, since it uses more digits than its factorization.

26875000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 26875000 is about 5184.1103383319. The cubic root of 26875000 is about 299.5363207448.

The spelling of 26875000 in words is "twenty-six million, eight hundred seventy-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 43 50 86 100 125 172 200 215 250 344 430 500 625 860 1000 1075 1250 1720 2150 2500 3125 4300 5000 5375 6250 8600 10750 12500 15625 21500 25000 26875 31250 43000 53750 62500 78125 107500 125000 134375 156250 215000 268750 312500 537500 625000 671875 1075000 1343750 2687500 3359375 5375000 6718750 13437500 26875000