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89991032411231 = 72373197163723743
BaseRepresentation
bin10100011101100010101011…
…100001010001010001011111
3102210122001120202222120021222
4110131202223201101101133
543243403113244124411
6515221150511043555
724645431450314160
oct2435425341212137
9383561522876258
1089991032411231
1126745a89809a76
12a114a468105bb
133b2a16c177aa3
141831836b07767
15a60d174534db
hex51d8ab85145f

89991032411231 has 64 divisors (see below), whose sum is σ = 109412242587648. Its totient is φ = 72354092203008.

The previous prime is 89991032411207. The next prime is 89991032411299. The reversal of 89991032411231 is 13211423019998.

It is not a de Polignac number, because 89991032411231 - 214 = 89991032394847 is a prime.

It is a super-2 number, since 2×899910324112312 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89991032411201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3790201346 + ... + 3790225088.

It is an arithmetic number, because the mean of its divisors is an integer number (1709566290432).

Almost surely, 289991032411231 is an apocalyptic number.

89991032411231 is a deficient number, since it is larger than the sum of its proper divisors (19421210176417).

89991032411231 is a wasteful number, since it uses less digits than its factorization.

89991032411231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25680.

The product of its (nonzero) digits is 839808, while the sum is 53.

The spelling of 89991032411231 in words is "eighty-nine trillion, nine hundred ninety-one billion, thirty-two million, four hundred eleven thousand, two hundred thirty-one".

Divisors: 1 7 23 73 161 197 511 1379 1637 1679 4531 11459 11753 14381 23743 31717 37651 100667 119501 166201 263557 322489 330763 546089 836507 1733239 2257423 2315341 2748523 3822623 4677371 7417247 12132673 19239661 23541697 32741597 38867291 39864497 51920729 107579533 164791879 272071037 279051479 341448083 541459031 753056731 893947693 2390136581 2837312243 3790213217 6257633851 7656856327 7853305909 19861185701 53597994289 54973141363 65258181589 176107695521 456807271123 558950511871 1232753868647 3912653583097 12855861773033 89991032411231