Search a number
-
+
1530630881480 = 23523282987257
BaseRepresentation
bin10110010001100000101…
…101011100000011001000
312102022211022001010210102
4112101200231130003020
5200034213001201410
63131055003504532
7215404313553011
oct26214055340310
95368738033712
101530630881480
11540156257a78
12208791228148
13b14513ca54c
14541237ba008
1529c365912a5
hex16460b5c0c8

1530630881480 has 96 divisors (see below), whose sum is σ = 3604549447800. Its totient is φ = 584919548928.

The previous prime is 1530630881449. The next prime is 1530630881519. The reversal of 1530630881480 is 841880360351.

It can be written as a sum of positive squares in 4 ways, for example, as 806508171364 + 724122710116 = 898058^2 + 850954^2 .

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, 17498012 + ... + 17585268.

Almost surely, 21530630881480 is an apocalyptic number.

1530630881480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530630881480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1802274723900).

1530630881480 is an abundant number, since it is smaller than the sum of its proper divisors (2073918566320).

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

1530630881480 is a wasteful number, since it uses less digits than its factorization.

1530630881480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88143 (or 88116 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 1530630881480 in words is "one trillion, five hundred thirty billion, six hundred thirty million, eight hundred eighty-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 529 829 920 1058 1658 2116 2645 3316 4145 4232 5290 6632 8290 10580 16580 19067 21160 33160 38134 76268 87257 95335 152536 174514 190670 349028 381340 436285 438541 698056 762680 872570 877082 1745140 1754164 2006911 2192705 3490280 3508328 4013822 4385410 8027644 8770820 10034555 16055288 17541640 20069110 40138220 46158953 72336053 80276440 92317906 144672106 184635812 230794765 289344212 361680265 369271624 461589530 578688424 723360530 923179060 1446721060 1663729219 1846358120 2893442120 3327458438 6654916876 8318646095 13309833752 16637292190 33274584380 38265772037 66549168760 76531544074 153063088148 191328860185 306126176296 382657720370 765315440740 1530630881480