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30030000780550 = 25217231536061421
BaseRepresentation
bin1101101001111111001111…
…00001110111010100000110
310221022211200101110022120111
412310333213201313110012
512414002420144434200
6143511331504023234
76216411261665551
oct664774741672406
9127284611408514
1030030000780550
119628719618571
123450022601b1a
13139aa80a186c4
1475b661959698
15371238a090ba
hex1b4fe7877506

30030000780550 has 48 divisors (see below), whose sum is σ = 61712803690272. Its totient is φ = 10813872396800.

The previous prime is 30030000780517. The next prime is 30030000780581. The reversal of 30030000780550 is 5508700003003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 768011161 + ... + 768050260.

It is an arithmetic number, because the mean of its divisors is an integer number (1285683410214).

Almost surely, 230030000780550 is an apocalyptic number.

30030000780550 is an abundant number, since it is smaller than the sum of its proper divisors (31682802909722).

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

30030000780550 is a wasteful number, since it uses less digits than its factorization.

30030000780550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536061473 (or 1536061468 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

Adding to 30030000780550 its reverse (5508700003003), we get a palindrome (35538700783553).

The spelling of 30030000780550 in words is "thirty trillion, thirty billion, seven hundred eighty thousand, five hundred fifty".

Divisors: 1 2 5 10 17 23 25 34 46 50 85 115 170 230 391 425 575 782 850 1150 1955 3910 9775 19550 1536061421 3072122842 7680307105 15360614210 26113044157 35329412683 38401535525 52226088314 70658825366 76803071050 130565220785 176647063415 261130441570 353294126830 600600015611 652826103925 883235317075 1201200031222 1305652207850 1766470634150 3003000078055 6006000156110 15015000390275 30030000780550