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89851271552 = 277234360019
BaseRepresentation
bin101001110101110001…
…1011001100110000000
322120220220000112001022
41103223203121212000
52433003411142202
6105135504325012
76330412130630
oct1235343314600
9276826015038
1089851271552
1135118778219
12154b7013768
13861c07a093
1444c52646c0
15250d29dea2
hex14eb8d9980

89851271552 has 64 divisors (see below), whose sum is σ = 213466579200. Its totient is φ = 36833432064.

The previous prime is 89851271533. The next prime is 89851271579. The reversal of 89851271552 is 25517215898.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×898512715522 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89851271494 and 89851271503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159402 + ... + 2200617.

It is an arithmetic number, because the mean of its divisors is an integer number (3335415300).

Almost surely, 289851271552 is an apocalyptic number.

It is an amenable number.

89851271552 is an abundant number, since it is smaller than the sum of its proper divisors (123615307648).

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

89851271552 is a wasteful number, since it uses less digits than its factorization.

89851271552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360063 (or 4360051 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 53.

The spelling of 89851271552 in words is "eighty-nine billion, eight hundred fifty-one million, two hundred seventy-one thousand, five hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 23 28 32 46 56 64 92 112 128 161 184 224 322 368 448 644 736 896 1288 1472 2576 2944 5152 10304 20608 4360019 8720038 17440076 30520133 34880152 61040266 69760304 100280437 122080532 139520608 200560874 244161064 279041216 401121748 488322128 558082432 701963059 802243496 976644256 1403926118 1604486992 1953288512 2807852236 3208973984 3906577024 5615704472 6417947968 11231408944 12835895936 22462817888 44925635776 89851271552