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89000070 = 23531831153
BaseRepresentation
bin1010100111000…
…00100010000110
320012110200010220
411103200202012
5140241000240
612455325210
72130326265
oct523404206
9205420126
1089000070
1146269085
1225980806
1315591a83
14bb6a5dc
157c305d0
hex54e0886

89000070 has 64 divisors (see below), whose sum is σ = 223340544. Its totient is φ = 22671360.

The previous prime is 89000027. The next prime is 89000099. The reversal of 89000070 is 7000098.

It is a self number, because there is not a number n which added to its sum of digits gives 89000070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76614 + ... + 77766.

It is an arithmetic number, because the mean of its divisors is an integer number (3489696).

Almost surely, 289000070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89000070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111670272).

89000070 is an abundant number, since it is smaller than the sum of its proper divisors (134340474).

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

89000070 is a wasteful number, since it uses less digits than its factorization.

89000070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 89000070 is about 9433.9848420485. The cubic root of 89000070 is about 446.4746266117.

The spelling of 89000070 in words is "eighty-nine million, seventy", and thus it is an aban number and an uban number.

Divisors: 1 2 3 5 6 10 15 30 31 62 83 93 155 166 186 249 310 415 465 498 830 930 1153 1245 2306 2490 2573 3459 5146 5765 6918 7719 11530 12865 15438 17295 25730 34590 35743 38595 71486 77190 95699 107229 178715 191398 214458 287097 357430 478495 536145 574194 956990 1072290 1435485 2870970 2966669 5933338 8900007 14833345 17800014 29666690 44500035 89000070