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53075780268 = 22371316617297
BaseRepresentation
bin110001011011100100…
…000010001010101100
312001222221102222221120
4301123210002022230
51332144344432033
640214354100540
73556160455110
oct613344021254
9161887388846
1053075780268
1120566992315
12a352b7a750
13500b067a54
1427d7021740
1515a99071b3
hexc5b9022ac

53075780268 has 96 divisors (see below), whose sum is σ = 142851168768. Its totient is φ = 15023923200.

The previous prime is 53075780267. The next prime is 53075780269. The reversal of 53075780268 is 86208757035.

It is an interprime number because it is at equal distance from previous prime (53075780267) and next prime (53075780269).

It is a self number, because there is not a number n which added to its sum of digits gives 53075780268.

It is not an unprimeable number, because it can be changed into a prime (53075780267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7269996 + ... + 7277292.

It is an arithmetic number, because the mean of its divisors is an integer number (1488033008).

Almost surely, 253075780268 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 53075780268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71425584384).

53075780268 is an abundant number, since it is smaller than the sum of its proper divisors (89775388500).

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

53075780268 is a wasteful number, since it uses less digits than its factorization.

53075780268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103 (or 8101 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 53075780268 in words is "fifty-three billion, seventy-five million, seven hundred eighty thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 131 262 393 524 661 786 917 1322 1572 1834 1983 2644 2751 3668 3966 4627 5502 7297 7932 9254 11004 13881 14594 18508 21891 27762 29188 43782 51079 55524 86591 87564 102158 153237 173182 204316 259773 306474 346364 519546 606137 612948 955907 1039092 1212274 1818411 1911814 2424548 2867721 3636822 3823628 4823317 5735442 6691349 7273644 9646634 11470884 13382698 14469951 19293268 20074047 26765396 28939902 33763219 40148094 57879804 67526438 80296188 101289657 135052876 202579314 405158628 631854527 1263709054 1895563581 2527418108 3791127162 4422981689 7582254324 8845963378 13268945067 17691926756 26537890134 53075780268