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10426577780 = 225521328889
BaseRepresentation
bin10011011010111100…
…01111001101110100
3222220122110000211102
421231132033031310
5132323200442110
64442341425232
7516244306643
oct115536171564
928818400742
1010426577780
114470593233
12202ba0b218
13ca21a6168
1470ca8535a
154105715a5
hex26d78f374

10426577780 has 12 divisors (see below), whose sum is σ = 21895813380. Its totient is φ = 4170631104.

The previous prime is 10426577771. The next prime is 10426577783. The reversal of 10426577780 is 8777562401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1428537616 + 8998040164 = 37796^2 + 94858^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10426577783) 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, 260664425 + ... + 260664464.

It is an arithmetic number, because the mean of its divisors is an integer number (1824651115).

Almost surely, 210426577780 is an apocalyptic number.

10426577780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10426577780 is an abundant number, since it is smaller than the sum of its proper divisors (11469235600).

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

10426577780 is a wasteful number, since it uses less digits than its factorization.

10426577780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521328898 (or 521328896 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 10426577780 in words is "ten billion, four hundred twenty-six million, five hundred seventy-seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 521328889 1042657778 2085315556 2606644445 5213288890 10426577780