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26720086 = 2123110853
BaseRepresentation
bin110010111101…
…1011101010110
31212021112001211
41211323131112
523320020321
62352412034
7443055061
oct145733526
955245054
1026720086
11140a0218
128b4701a
1356c7103
1437978d8
15252c0e1
hex197b756

26720086 has 8 divisors (see below), whose sum is σ = 40116384. Its totient is φ = 13347960.

The previous prime is 26720081. The next prime is 26720087. The reversal of 26720086 is 68002762.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26720081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965 + ... + 7888.

It is an arithmetic number, because the mean of its divisors is an integer number (5014548).

Almost surely, 226720086 is an apocalyptic number.

26720086 is a deficient number, since it is larger than the sum of its proper divisors (13396298).

26720086 is a wasteful number, since it uses less digits than its factorization.

26720086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12086.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 26720086 is about 5169.1475119211. The cubic root of 26720086 is about 298.9596780859.

The spelling of 26720086 in words is "twenty-six million, seven hundred twenty thousand, eighty-six".

Divisors: 1 2 1231 2462 10853 21706 13360043 26720086