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30122676991968 = 25311154931841171
BaseRepresentation
bin1101101100101011110110…
…11101100011011111100000
310221122200220011002122121020
412312111323131203133200
512422012220302220333
6144022100004525440
76226202005540011
oct666257335433740
9127580804078536
1030122676991968
119663a56957930
123465b876b0880
1313a6730115722
14761d34057008
1537385ecbc3b3
hex1b657b7637e0

30122676991968 has 96 divisors (see below), whose sum is σ = 86266007759232. Its totient is φ = 9127489804800.

The previous prime is 30122676991877. The next prime is 30122676991969. The reversal of 30122676991968 is 86919967622103.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122676991969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15440023 + ... + 17281193.

It is an arithmetic number, because the mean of its divisors is an integer number (898604247492).

Almost surely, 230122676991968 is an apocalyptic number.

It is an amenable number.

30122676991968 is an abundant number, since it is smaller than the sum of its proper divisors (56143330767264).

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

30122676991968 is a wasteful number, since it uses less digits than its factorization.

30122676991968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856688 (or 1856680 counting only the distinct ones).

The product of its (nonzero) digits is 105815808, while the sum is 69.

The spelling of 30122676991968 in words is "thirty trillion, one hundred twenty-two billion, six hundred seventy-six million, nine hundred ninety-one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 15493 30986 46479 61972 92958 123944 170423 185916 247888 340846 371832 495776 511269 681692 743664 1022538 1363384 1487328 1841171 2045076 2726768 3682342 4090152 5453536 5523513 7364684 8180304 11047026 14729368 16360608 20252881 22094052 29458736 40505762 44188104 58917472 60758643 81011524 88376208 121517286 162023048 176752416 243034572 324046096 486069144 648092192 972138288 1944276576 28525262303 57050524606 85575786909 114101049212 171151573818 228202098424 313777885333 342303147636 456404196848 627555770666 684606295272 912808393696 941333655999 1255111541332 1369212590544 1882667311998 2510223082664 2738425181088 3765334623996 5020446165328 7530669247992 10040892330656 15061338495984 30122676991968