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8961001617238 = 21131131197509137
BaseRepresentation
bin1000001001100110010101…
…0100010111011101010110
31011201122220121110201101121
42002121211110113131112
52133304112403222423
631020343255514154
71613260654662316
oct202314524273526
934648817421347
108961001617238
112945380888a30
12100885138895a
13500032492768
1422da01567446
15108169ae545d
hex82665517756

8961001617238 has 64 divisors (see below), whose sum is σ = 15329469044736. Its totient is φ = 3891835584000.

The previous prime is 8961001617167. The next prime is 8961001617317. The reversal of 8961001617238 is 8327161001698.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17345806 + ... + 17854942.

It is an arithmetic number, because the mean of its divisors is an integer number (239522953824).

Almost surely, 28961001617238 is an apocalyptic number.

8961001617238 is a deficient number, since it is larger than the sum of its proper divisors (6368467427498).

8961001617238 is a wasteful number, since it uses less digits than its factorization.

8961001617238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509509.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 8961001617238 in words is "eight trillion, nine hundred sixty-one billion, one million, six hundred seventeen thousand, two hundred thirty-eight".

Divisors: 1 2 11 22 31 62 131 197 262 341 394 682 1441 2167 2882 4061 4334 6107 8122 12214 25807 44671 51614 67177 89342 134354 283877 509137 567754 800017 1018274 1600034 5600507 8800187 11201014 15783247 17600374 31566494 66696947 100299989 133393894 173615717 200599978 347231434 733666417 1103299879 1467332834 2067605357 2206599758 3109299659 4135210714 6218599318 13139298559 22743658927 26278597118 34202296249 45487317854 68404592498 144532284149 289064568298 407318255329 814636510658 4480500808619 8961001617238