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49721765608 = 2319231572577
BaseRepresentation
bin101110010011101001…
…011110111011101000
311202100012021101210101
4232103221132323220
51303312232444413
634501501555144
73410103014524
oct562351367350
9152305241711
1049721765608
111a0a5705479
129777875ab4
1348c5222ba8
1425997c4d84
151460234edd
hexb93a5eee8

49721765608 has 96 divisors (see below), whose sum is σ = 103236811200. Its totient is φ = 22346108928.

The previous prime is 49721765603. The next prime is 49721765623. The reversal of 49721765608 is 80656712794.

It is not an unprimeable number, because it can be changed into a prime (49721765603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86172616 + ... + 86173192.

It is an arithmetic number, because the mean of its divisors is an integer number (1075383450).

Almost surely, 249721765608 is an apocalyptic number.

It is an amenable number.

49721765608 is an abundant number, since it is smaller than the sum of its proper divisors (53515045592).

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

49721765608 is a wasteful number, since it uses less digits than its factorization.

49721765608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 49721765608 in words is "forty-nine billion, seven hundred twenty-one million, seven hundred sixty-five thousand, six hundred eight".

Divisors: 1 2 4 8 19 23 38 46 76 92 152 157 184 314 437 577 628 874 1154 1256 1748 2308 2983 3496 3611 4616 5966 7222 10963 11932 13271 14444 21926 23864 24649 26542 28888 43852 49298 53084 68609 87704 90589 98596 106168 137218 181178 197192 252149 274436 362356 468331 504298 548872 566927 724712 936662 1008596 1133854 1721191 1873324 2017192 2083547 2267708 3442382 3746648 4167094 4535416 6884764 8334188 10771613 13769528 14222473 16668376 21543226 28444946 39587393 43086452 56889892 79174786 86172904 113779784 158349572 270226987 316699144 327116879 540453974 654233758 1080907948 1308467516 2161815896 2616935032 6215220701 12430441402 24860882804 49721765608