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30461248224 = 25321189108037
BaseRepresentation
bin11100010111101000…
…011100001011100000
32220121220012201222200
4130113220130023200
5444341034420344
621554350133200
72125600223601
oct342750341340
986556181880
1030461248224
1111a11642710
125aa14b1200
132b45acc844
14168d7d3da8
15bd438a069
hex717a1c2e0

30461248224 has 144 divisors (see below), whose sum is σ = 95561771760. Its totient is φ = 9126881280.

The previous prime is 30461248177. The next prime is 30461248247. The reversal of 30461248224 is 42284216403.

30461248224 is a `hidden beast` number, since 30 + 4 + 612 + 4 + 8 + 2 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 227934 + ... + 335970.

It is an arithmetic number, because the mean of its divisors is an integer number (663623415).

Almost surely, 230461248224 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 30461248224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47780885880).

30461248224 is an abundant number, since it is smaller than the sum of its proper divisors (65100523536).

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

30461248224 is a wasteful number, since it uses less digits than its factorization.

30461248224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108153 (or 108142 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

It can be divided in two parts, 304612 and 48224, that added together give a square (352836 = 5942).

The spelling of 30461248224 in words is "thirty billion, four hundred sixty-one million, two hundred forty-eight thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 66 72 88 89 96 99 132 144 176 178 198 264 267 288 352 356 396 528 534 712 792 801 979 1056 1068 1424 1584 1602 1958 2136 2848 2937 3168 3204 3916 4272 5874 6408 7832 8544 8811 11748 12816 15664 17622 23496 25632 31328 35244 46992 70488 93984 108037 140976 216074 281952 324111 432148 648222 864296 972333 1188407 1296444 1728592 1944666 2376814 2592888 3457184 3565221 3889332 4753628 5185776 7130442 7778664 9507256 9615293 10371552 10695663 14260884 15557328 19014512 19230586 21391326 28521768 28845879 31114656 38029024 38461172 42782652 57043536 57691758 76922344 85565304 86537637 105768223 114087072 115383516 153844688 171130608 173075274 211536446 230767032 307689376 317304669 342261216 346150548 423072892 461534064 634609338 692301096 846145784 923068128 951914007 1269218676 1384602192 1692291568 1903828014 2538437352 2769204384 3384583136 3807656028 5076874704 7615312056 10153749408 15230624112 30461248224