Search a number
-
+
30287922784 = 2572341143387
BaseRepresentation
bin11100001101010011…
…010000011001100000
32220011211001220011221
4130031103100121200
5444012202012114
621525235144424
72121364044610
oct341523203140
986154056157
1030287922784
1111932819749
125a53445114
132b18c24a02
141674796a40
15bc404e524
hex70d4d0660

30287922784 has 96 divisors (see below), whose sum is σ = 72845692416. Its totient is φ = 12113249280.

The previous prime is 30287922779. The next prime is 30287922827. The reversal of 30287922784 is 48722978203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139539 + ... + 282925.

It is an arithmetic number, because the mean of its divisors is an integer number (758809296).

Almost surely, 230287922784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30287922784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36422846208).

30287922784 is an abundant number, since it is smaller than the sum of its proper divisors (42557769632).

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

30287922784 is a wasteful number, since it uses less digits than its factorization.

30287922784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143468 (or 143460 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 30287922784 in words is "thirty billion, two hundred eighty-seven million, nine hundred twenty-two thousand, seven hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 23 28 32 41 46 56 82 92 112 161 164 184 224 287 322 328 368 574 644 656 736 943 1148 1288 1312 1886 2296 2576 3772 4592 5152 6601 7544 9184 13202 15088 26404 30176 52808 105616 143387 211232 286774 573548 1003709 1147096 2007418 2294192 3297901 4014836 4588384 5878867 6595802 8029672 11757734 13191604 16059344 23085307 23515468 26383208 32118688 41152069 46170614 47030936 52766416 82304138 92341228 94061872 105532832 135213941 164608276 184682456 188123744 270427882 329216552 369364912 540855764 658433104 738729824 946497587 1081711528 1316866208 1892995174 2163423056 3785990348 4326846112 7571980696 15143961392 30287922784