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89208144291 = 37191271760467
BaseRepresentation
bin101001100010100111…
…0000100000110100011
322112021001212021022010
41103011032010012203
52430144241104131
6104552012044003
76305442500220
oct1230516040643
9275231767263
1089208144291
1134918743192
1215357763603
138548a613c6
144463a92947
1524c1ab2b46
hex14c53841a3

89208144291 has 32 divisors (see below), whose sum is σ = 144217538560. Its totient is φ = 47912842656.

The previous prime is 89208144269. The next prime is 89208144293. The reversal of 89208144291 is 19244180298.

It is not a de Polignac number, because 89208144291 - 26 = 89208144227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89208144291.

It is not an unprimeable number, because it can be changed into a prime (89208144293) 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, 829561 + ... + 930906.

It is an arithmetic number, because the mean of its divisors is an integer number (4506798080).

Almost surely, 289208144291 is an apocalyptic number.

89208144291 is a deficient number, since it is larger than the sum of its proper divisors (55009394269).

89208144291 is a wasteful number, since it uses less digits than its factorization.

89208144291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760623.

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 89208144291 in words is "eighty-nine billion, two hundred eight million, one hundred forty-four thousand, two hundred ninety-one".

Divisors: 1 3 7 19 21 57 127 133 381 399 889 2413 2667 7239 16891 50673 1760467 5281401 12323269 33448873 36969807 100346619 223579309 234142111 670737927 702426333 1565055163 4248006871 4695165489 12744020613 29736048097 89208144291