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26680284 = 2232741119
BaseRepresentation
bin110010111000…
…1101111011100
31212012111110200
41211301233130
523312232114
62351503500
7442531041
oct145615734
955174420
1026680284
1114073324
128b27b90
1356b1c67
1437871c8
152520409
hex1971bdc

26680284 has 18 divisors (see below), whose sum is σ = 67441920. Its totient is φ = 8893416.

The previous prime is 26680279. The next prime is 26680289. The reversal of 26680284 is 48208662.

It is an interprime number because it is at equal distance from previous prime (26680279) and next prime (26680289).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×266802843 (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 741119 = 26680284 / (2 + 6 + 6 + 8 + 0 + 2 + 8 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26680289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370524 + ... + 370595.

Almost surely, 226680284 is an apocalyptic number.

It is an amenable number.

26680284 is an abundant number, since it is smaller than the sum of its proper divisors (40761636).

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

26680284 is a wasteful number, since it uses less digits than its factorization.

26680284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741129 (or 741124 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 26680284 is about 5165.2961192946. The cubic root of 26680284 is about 298.8111617686.

The spelling of 26680284 in words is "twenty-six million, six hundred eighty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 741119 1482238 2223357 2964476 4446714 6670071 8893428 13340142 26680284