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26948421480 = 23351032180293
BaseRepresentation
bin11001000110010000…
…000100011101101000
32120120002012122121110
4121012100010131220
5420142243441410
620214022110320
71642543542321
oct310620043550
976502178543
1026948421480
1110479754a12
125280b7b3a0
1327060c1b36
141439057448
15a7ac97720
hex646404768

26948421480 has 64 divisors (see below), whose sum is σ = 81630207360. Its totient is φ = 7116473088.

The previous prime is 26948421439. The next prime is 26948421481. The reversal of 26948421480 is 8412484962.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26948421481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1077787 + ... + 1102506.

It is an arithmetic number, because the mean of its divisors is an integer number (1275471990).

Almost surely, 226948421480 is an apocalyptic number.

26948421480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26948421480 is an abundant number, since it is smaller than the sum of its proper divisors (54681785880).

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

26948421480 is a wasteful number, since it uses less digits than its factorization.

26948421480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180410 (or 2180406 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 26948421480 in words is "twenty-six billion, nine hundred forty-eight million, four hundred twenty-one thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 103 120 206 309 412 515 618 824 1030 1236 1545 2060 2472 3090 4120 6180 12360 2180293 4360586 6540879 8721172 10901465 13081758 17442344 21802930 26163516 32704395 43605860 52327032 65408790 87211720 130817580 224570179 261635160 449140358 673710537 898280716 1122850895 1347421074 1796561432 2245701790 2694842148 3368552685 4491403580 5389684296 6737105370 8982807160 13474210740 26948421480