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91027504612372 = 221922674373120817
BaseRepresentation
bin10100101100100111111110…
…000100111100010000010100
3102221022010220022021210000111
4110230213332010330100110
543412343312140043442
6521333242555252404
725113343264544146
oct2454477604742024
9387263808253014
1091027504612372
11270056032a9459
12a2618a714a104
133ba3b1a675423
141869a7cda4c96
15a7cc7ab02b17
hex52c9fe13c414

91027504612372 has 48 divisors (see below), whose sum is σ = 167795962568640. Its totient is φ = 43089059261952.

The previous prime is 91027504612351. The next prime is 91027504612411. The reversal of 91027504612372 is 27321640572019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753372508 + ... + 753493324.

It is an arithmetic number, because the mean of its divisors is an integer number (3495749220180).

Almost surely, 291027504612372 is an apocalyptic number.

It is an amenable number.

91027504612372 is a deficient number, since it is larger than the sum of its proper divisors (76768457956268).

91027504612372 is a wasteful number, since it uses less digits than its factorization.

91027504612372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127480 (or 127478 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 91027504612372 in words is "ninety-one trillion, twenty-seven billion, five hundred four million, six hundred twelve thousand, three hundred seventy-two".

Divisors: 1 2 4 19 38 76 2267 4373 4534 8746 9068 17492 43073 83087 86146 120817 166174 172292 241634 332348 483268 2295523 4591046 9182092 9913591 19827182 39654364 188358229 273892139 376716458 528332741 547784278 753432916 1056665482 1095568556 2113330964 5203950641 10038322079 10407901282 20076644158 20815802564 40153288316 1197730323847 2395460647694 4790921295388 22756876153093 45513752306186 91027504612372