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30128627776 = 2613216692
BaseRepresentation
bin11100000011110011…
…100110000001000000
32212202201022212111211
4130003303212001000
5443200412042101
621501345015504
72114421052642
oct340363460100
985681285454
1030128627776
1111860908a85
125a0a024594
132ac1c20100
14165b56c892
15bb5085c51
hex703ce6040

30128627776 has 63 divisors (see below), whose sum is σ = 64778035671. Its totient is φ = 13897188864.

The previous prime is 30128627729. The next prime is 30128627783. The reversal of 30128627776 is 67772682103.

It is a happy number.

The square root of 30128627776 is 173576.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3682062400 + 26446565376 = 60680^2 + 162624^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18051070 + ... + 18052738.

Almost surely, 230128627776 is an apocalyptic number.

30128627776 is the 173576-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30128627776

30128627776 is an abundant number, since it is smaller than the sum of its proper divisors (34649407895).

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

30128627776 is an frugal number, since it uses more digits than its factorization.

30128627776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 1684 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 49.

Multiplying 30128627776 by its sum of digits (49), we get a square (1476302761024 = 12150322).

The spelling of 30128627776 in words is "thirty billion, one hundred twenty-eight million, six hundred twenty-seven thousand, seven hundred seventy-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 169 208 338 416 676 832 1352 1669 2704 3338 5408 6676 10816 13352 21697 26704 43394 53408 86788 106816 173576 282061 347152 564122 694304 1128244 1388608 2256488 2785561 4512976 5571122 9025952 11142244 18051904 22284488 36212293 44568976 72424586 89137952 144849172 178275904 289698344 470759809 579396688 941519618 1158793376 1883039236 2317586752 3766078472 7532156944 15064313888 30128627776