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630086655380 = 2257133153210713
BaseRepresentation
bin10010010101101000001…
…01110101110110010100
32020020100211012111200212
421022310011311312110
540310404140433010
61201242515424552
763344064126320
oct11126405656624
92206324174625
10630086655380
11223244544046
12a21468b5158
1347555c73080
14226d4008980
15115cb3b2505
hex92b4175d94

630086655380 has 192 divisors, whose sum is σ = 1712791277568. Its totient is φ = 189337374720.

The previous prime is 630086655361. The next prime is 630086655461. The reversal of 630086655380 is 83556680036.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2884904 + ... + 3095616.

It is an arithmetic number, because the mean of its divisors is an integer number (8920787904).

Almost surely, 2630086655380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630086655380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856395638784).

630086655380 is an abundant number, since it is smaller than the sum of its proper divisors (1082704622188).

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

630086655380 is a wasteful number, since it uses less digits than its factorization.

630086655380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210826 (or 210824 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 630086655380 in words is "six hundred thirty billion, eighty-six million, six hundred fifty-five thousand, three hundred eighty".