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26445315460 = 22519724172777
BaseRepresentation
bin11000101000010000…
…110111110110000100
32112021000112012220011
4120220100313312010
5413130000043320
620052050520004
71624224321034
oct305020676604
975230465804
1026445315460
1110240766a13
125160596004
132655ac0075
1413cc2d38c4
15a4ba1905a
hex628437d84

26445315460 has 48 divisors (see below), whose sum is σ = 55860268464. Its totient is φ = 10516287488.

The previous prime is 26445315451. The next prime is 26445315461. The reversal of 26445315460 is 6451354462.

It can be written as a sum of positive squares in 8 ways, for example, as 3487611136 + 22957704324 = 59056^2 + 151518^2 .

It is not an unprimeable number, because it can be changed into a prime (26445315461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9521592 + ... + 9524368.

It is an arithmetic number, because the mean of its divisors is an integer number (1163755593).

Almost surely, 226445315460 is an apocalyptic number.

26445315460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26445315460 is an abundant number, since it is smaller than the sum of its proper divisors (29414953004).

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

26445315460 is a wasteful number, since it uses less digits than its factorization.

26445315460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400 (or 5398 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 26445315460 in words is "twenty-six billion, four hundred forty-five million, three hundred fifteen thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 2417 2777 3940 4834 5554 9668 11108 12085 13885 24170 27770 48340 55540 476149 547069 952298 1094138 1904596 2188276 2380745 2735345 4761490 5470690 6712009 9522980 10941380 13424018 26848036 33560045 67120090 134240180 1322265773 2644531546 5289063092 6611328865 13222657730 26445315460