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30764728470 = 23571723374677
BaseRepresentation
bin11100101001101110…
…001000000010010110
32221102001021010121210
4130221232020002112
51001001232302340
622044430522250
72136243606630
oct345156100226
987361233553
1030764728470
1112057983933
125b67066386
132b93948758
1416bbc31a50
15c00d35180
hex729b88096

30764728470 has 128 divisors (see below), whose sum is σ = 93231876096. Its totient is φ = 6330525696.

The previous prime is 30764728429. The next prime is 30764728481. The reversal of 30764728470 is 7482746703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105229 + ... + 269448.

It is an arithmetic number, because the mean of its divisors is an integer number (728374032).

Almost surely, 230764728470 is an apocalyptic number.

30764728470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30764728470 is an abundant number, since it is smaller than the sum of its proper divisors (62467147626).

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

30764728470 is a wasteful number, since it uses less digits than its factorization.

30764728470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374734.

The product of its (nonzero) digits is 1580544, while the sum is 48.

The spelling of 30764728470 in words is "thirty billion, seven hundred sixty-four million, seven hundred twenty-eight thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 17 21 23 30 34 35 42 46 51 69 70 85 102 105 115 119 138 161 170 210 230 238 255 322 345 357 391 483 510 595 690 714 782 805 966 1173 1190 1610 1785 1955 2346 2415 2737 3570 3910 4830 5474 5865 8211 11730 13685 16422 27370 41055 82110 374677 749354 1124031 1873385 2248062 2622739 3746770 5245478 5620155 6369509 7868217 8617571 11240310 12739018 13113695 15736434 17235142 19108527 25852713 26227390 31847545 38217054 39341085 43087855 44586563 51705426 60322997 63695090 78682170 86175710 89173126 95542635 120645994 129263565 133759689 146498707 180968991 191085270 222932815 258527130 267519378 292997414 301614985 361937982 439496121 445865630 603229970 668798445 732493535 878992242 904844955 1025490949 1337596890 1464987070 1809689910 2050981898 2197480605 3076472847 4394961210 5127454745 6152945694 10254909490 15382364235 30764728470