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89887973916 = 223133023190607
BaseRepresentation
bin101001110110110111…
…1011010001000011100
322121000110002012020010
41103231233122020130
52433042310131131
6105143255123220
76331336112616
oct1235557321034
9277013065203
1089887973916
1135137466254
1215507373510
13862685a960
1444ca099db6
1525115edb46
hex14edbda21c

89887973916 has 48 divisors (see below), whose sum is σ = 225948248064. Its totient is φ = 27648543936.

The previous prime is 89887973837. The next prime is 89887973921. The reversal of 89887973916 is 61937978898.

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, 376285 + ... + 566891.

It is an arithmetic number, because the mean of its divisors is an integer number (4707255168).

Almost surely, 289887973916 is an apocalyptic number.

It is an amenable number.

89887973916 is an abundant number, since it is smaller than the sum of its proper divisors (136060274148).

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

89887973916 is a wasteful number, since it uses less digits than its factorization.

89887973916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193650 (or 193648 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 75.

The spelling of 89887973916 in words is "eighty-nine billion, eight hundred eighty-seven million, nine hundred seventy-three thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 3023 6046 9069 12092 18138 36276 39299 78598 117897 157196 190607 235794 381214 471588 571821 762428 1143642 2287284 2477891 4955782 7433673 9911564 14867346 29734692 576204961 1152409922 1728614883 2304819844 3457229766 6914459532 7490664493 14981328986 22471993479 29962657972 44943986958 89887973916