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30783369540 = 22357116663067
BaseRepresentation
bin11100101010110101…
…001111000101000100
32221110100100012100210
4130222311033011010
51001021020311130
622050334235420
72136561216030
oct345265170504
987410305323
1030783369540
1112067456180
125b71355b70
132b97774481
1416c04c51c0
15c027b85b0
hex72ad4f144

30783369540 has 96 divisors (see below), whose sum is σ = 107461960704. Its totient is φ = 6396543360.

The previous prime is 30783369521. The next prime is 30783369607. The reversal of 30783369540 is 4596338703.

It is a self number, because there is not a number n which added to its sum of digits gives 30783369540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3326914 + ... + 3336153.

It is an arithmetic number, because the mean of its divisors is an integer number (1119395424).

Almost surely, 230783369540 is an apocalyptic number.

30783369540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30783369540 is an abundant number, since it is smaller than the sum of its proper divisors (76678591164).

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

30783369540 is a wasteful number, since it uses less digits than its factorization.

30783369540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6663097 (or 6663095 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 30783369540 in words is "thirty billion, seven hundred eighty-three million, three hundred sixty-nine thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 66 70 77 84 105 110 132 140 154 165 210 220 231 308 330 385 420 462 660 770 924 1155 1540 2310 4620 6663067 13326134 19989201 26652268 33315335 39978402 46641469 66630670 73293737 79956804 93282938 99946005 133261340 139924407 146587474 186565876 199892010 219881211 233207345 279848814 293174948 366468685 399784020 439762422 466414690 513056159 559697628 699622035 732937370 879524844 932829380 1026112318 1099406055 1399244070 1465874740 1539168477 2052224636 2198812110 2565280795 2798488140 3078336954 4397624220 5130561590 6156673908 7695842385 10261123180 15391684770 30783369540