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2061025007740 = 225157656377391
BaseRepresentation
bin11101111111011110101…
…010011101100001111100
321022000212101011102222221
4131333132222131201330
5232231434400221430
64214453302415124
7301622056340356
oct35773652354174
97260771142887
102061025007740
11725091982386
122935351314a4
1311c47a4762ca
1471a7b5200d6
153892a70157a
hex1dfdea9d87c

2061025007740 has 24 divisors (see below), whose sum is σ = 4355720373312. Its totient is φ = 819158982720.

The previous prime is 2061025007731. The next prime is 2061025007753. The reversal of 2061025007740 is 477005201602.

It is a junction number, because it is equal to n+sod(n) for n = 2061025007696 and 2061025007705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328185556 + ... + 328191835.

It is an arithmetic number, because the mean of its divisors is an integer number (181488348888).

Almost surely, 22061025007740 is an apocalyptic number.

2061025007740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061025007740 is an abundant number, since it is smaller than the sum of its proper divisors (2294695365572).

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

2061025007740 is a wasteful number, since it uses less digits than its factorization.

2061025007740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656377557 (or 656377555 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 2061025007740 in words is "two trillion, sixty-one billion, twenty-five million, seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 656377391 1312754782 2625509564 3281886955 6563773910 13127547820 103051250387 206102500774 412205001548 515256251935 1030512503870 2061025007740