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26771062420 = 2251338553121
BaseRepresentation
bin11000111011101011…
…011111111010010100
32120002201110212201101
4120323223133322110
5414311342444140
620144244435444
71635261163444
oct307353377224
976081425641
1026771062420
1110398626483
1252316a8b84
1326a843404b
14141d68a124
15a6a41199a
hex63badfe94

26771062420 has 12 divisors (see below), whose sum is σ = 56219231124. Its totient is φ = 10708424960.

The previous prime is 26771062387. The next prime is 26771062427. The reversal of 26771062420 is 2426017762.

It can be written as a sum of positive squares in 2 ways, for example, as 12462596496 + 14308465924 = 111636^2 + 119618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26771062420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26771062427) 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, 669276541 + ... + 669276580.

It is an arithmetic number, because the mean of its divisors is an integer number (4684935927).

Almost surely, 226771062420 is an apocalyptic number.

26771062420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26771062420 is an abundant number, since it is smaller than the sum of its proper divisors (29448168704).

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

26771062420 is a wasteful number, since it uses less digits than its factorization.

26771062420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338553130 (or 1338553128 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 26771062420 in words is "twenty-six billion, seven hundred seventy-one million, sixty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1338553121 2677106242 5354212484 6692765605 13385531210 26771062420