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89809249260 = 22357918947099
BaseRepresentation
bin101001110100100001…
…1000110001111101100
322120210221221120022010
41103221003012033230
52432412131434020
6105131403521220
76326362010643
oct1235103061754
9276727846263
1089809249260
11350a6a86255
12154a4b29210
138613455c13
1444bd84635a
15250974cde0
hex14e90c63ec

89809249260 has 48 divisors (see below), whose sum is σ = 254649024000. Its totient is φ = 23645978304.

The previous prime is 89809249199. The next prime is 89809249301. The reversal of 89809249260 is 6294290898.

It is a self number, because there is not a number n which added to its sum of digits gives 89809249260.

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, 9468810 + ... + 9478289.

It is an arithmetic number, because the mean of its divisors is an integer number (5305188000).

Almost surely, 289809249260 is an apocalyptic number.

It is an amenable number.

89809249260 is an abundant number, since it is smaller than the sum of its proper divisors (164839774740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89809249260 is a wasteful number, since it uses less digits than its factorization.

89809249260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18947190 (or 18947188 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 89809249260 in words is "eighty-nine billion, eight hundred nine million, two hundred forty-nine thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 158 237 316 395 474 790 948 1185 1580 2370 4740 18947099 37894198 56841297 75788396 94735495 113682594 189470990 227365188 284206485 378941980 568412970 1136825940 1496820821 2993641642 4490462463 5987283284 7484104105 8980924926 14968208210 17961849852 22452312315 29936416420 44904624630 89809249260