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88198798285 = 513171937113539
BaseRepresentation
bin101001000100100001…
…1101101101111001101
322102122201121011212201
41102021003231233031
52421112343021120
6104303514201501
76241435262413
oct1221103555715
9272581534781
1088198798285
113444aa16634
1215115723291
138417901250
1443a99d12b3
15246318740a
hex14890edbcd

88198798285 has 64 divisors (see below), whose sum is σ = 130471084800. Its totient is φ = 56503775232.

The previous prime is 88198798277. The next prime is 88198798297. The reversal of 88198798285 is 58289789188.

It is a cyclic number.

It is not a de Polignac number, because 88198798285 - 23 = 88198798277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 720046 + ... + 833584.

It is an arithmetic number, because the mean of its divisors is an integer number (2038610700).

Almost surely, 288198798285 is an apocalyptic number.

88198798285 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

88198798285 is a deficient number, since it is larger than the sum of its proper divisors (42272286515).

88198798285 is a wasteful number, since it uses less digits than its factorization.

88198798285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113630.

The product of its digits is 185794560, while the sum is 73.

The spelling of 88198798285 in words is "eighty-eight billion, one hundred ninety-eight million, seven hundred ninety-eight thousand, two hundred eighty-five".

Divisors: 1 5 13 17 19 37 65 85 95 185 221 247 323 481 629 703 1105 1235 1615 2405 3145 3515 4199 8177 9139 11951 20995 40885 45695 59755 113539 155363 567695 776815 1476007 1930163 2157241 4200943 7380035 9650815 10786205 21004715 25092119 28044133 36673097 54612259 71416031 79817917 125460595 140220665 183365485 273061295 357080155 399089585 476750261 928408403 1037632921 1356904589 2383751305 4642042015 5188164605 6784522945 17639759657 88198798285