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89505700 = 22521575701
BaseRepresentation
bin1010101010110…
…11111110100100
320020102100201221
411111123332210
5140403140300
612514230124
72134533364
oct525337644
9206370657
1089505700
1146583a59
1225b85344
131570ac6b
14bc5c9a4
157cd031a
hex555bfa4

89505700 has 36 divisors (see below), whose sum is σ = 195498772. Its totient is φ = 35568000.

The previous prime is 89505679. The next prime is 89505707. The reversal of 89505700 is 750598.

It can be written as a sum of positive squares in 6 ways, for example, as 278784 + 89226916 = 528^2 + 9446^2 .

It is a super-2 number, since 2×895057002 = 16022540664980000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89505707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12850 + ... + 18550.

Almost surely, 289505700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89505700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97749386).

89505700 is an abundant number, since it is smaller than the sum of its proper divisors (105993072).

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

89505700 is a wasteful number, since it uses less digits than its factorization.

89505700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872 (or 5865 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 89505700 is about 9460.7452137768. The cubic root of 89505700 is about 447.3185390386.

The spelling of 89505700 in words is "eighty-nine million, five hundred five thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 157 314 628 785 1570 3140 3925 5701 7850 11402 15700 22804 28505 57010 114020 142525 285050 570100 895057 1790114 3580228 4475285 8950570 17901140 22376425 44752850 89505700