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30630605500 = 2253112506291
BaseRepresentation
bin11100100001101110…
…011111001010111100
32221001200212222111101
4130201232133022330
51000212413334000
622023240102444
72133024564565
oct344156371274
987050788441
1030630605500
1111a991a6300
125b2a164a24
132b71c18451
1416a80bb16c
15be418ee6a
hex721b9f2bc

30630605500 has 72 divisors (see below), whose sum is σ = 73531824912. Its totient is φ = 11138380000.

The previous prime is 30630605483. The next prime is 30630605531. The reversal of 30630605500 is 550603603.

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, 192646 + ... + 313645.

It is an arithmetic number, because the mean of its divisors is an integer number (1021275346).

Almost surely, 230630605500 is an apocalyptic number.

It is an amenable number.

30630605500 is an abundant number, since it is smaller than the sum of its proper divisors (42901219412).

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

30630605500 is a wasteful number, since it uses less digits than its factorization.

30630605500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506332 (or 506309 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The spelling of 30630605500 in words is "thirty billion, six hundred thirty million, six hundred five thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 125 220 242 250 275 484 500 550 605 1100 1210 1375 2420 2750 3025 5500 6050 12100 15125 30250 60500 506291 1012582 2025164 2531455 5062910 5569201 10125820 11138402 12657275 22276804 25314550 27846005 50629100 55692010 61261211 63286375 111384020 122522422 126572750 139230025 245044844 253145500 278460050 306306055 556920100 612612110 696150125 1225224220 1392300250 1531530275 2784600500 3063060550 6126121100 7657651375 15315302750 30630605500