Search a number
-
+
26861968 = 247373643
BaseRepresentation
bin110011001111…
…0000110010000
31212112201200201
41212132012100
523334040333
62355424544
7444215530
oct146360620
955481621
1026861968
1114187881
128bb5154
135746873
1437d34c0
15255917d
hex199e190

26861968 has 40 divisors (see below), whose sum is σ = 59732288. Its totient is φ = 11463552.

The previous prime is 26861959. The next prime is 26861977. The reversal of 26861968 is 86916862.

It is an interprime number because it is at equal distance from previous prime (26861959) and next prime (26861977).

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 7 ways as a sum of consecutive naturals, for example, 41455 + ... + 42097.

Almost surely, 226861968 is an apocalyptic number.

26861968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26861968 is an abundant number, since it is smaller than the sum of its proper divisors (32870320).

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

26861968 is a wasteful number, since it uses less digits than its factorization.

26861968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 1025 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 26861968 is about 5182.8532682298. The cubic root of 26861968 is about 299.4878967018.

The spelling of 26861968 in words is "twenty-six million, eight hundred sixty-one thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 373 643 746 1286 1492 2572 2611 2984 4501 5144 5222 5968 9002 10288 10444 18004 20888 36008 41776 72016 239839 479678 959356 1678873 1918712 3357746 3837424 6715492 13430984 26861968