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84088900 = 2252721312
BaseRepresentation
bin1010000001100…
…01100001000100
312212020011021201
411000301201010
5133011321100
612202152244
72040513100
oct500614104
9185204251
1084088900
1143514265
12241b2684
131456255c
14b24c900
1575b036a
hex5031844

84088900 has 81 divisors (see below), whose sum is σ = 213897117. Its totient is φ = 28610400.

The previous prime is 84088883. The next prime is 84088903. The reversal of 84088900 is 988048.

The square root of 84088900 is 9170.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 30272004 + 53816896 = 5502^2 + 7336^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84088900.

It is not an unprimeable number, because it can be changed into a prime (84088903) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 641835 + ... + 641965.

Almost surely, 284088900 is an apocalyptic number.

84088900 is the 9170-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84088900

84088900 is an abundant number, since it is smaller than the sum of its proper divisors (129808217).

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

84088900 is a wasteful number, since it uses less digits than its factorization.

84088900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The cubic root of 84088900 is about 438.1063592197.

The spelling of 84088900 in words is "eighty-four million, eighty-eight thousand, nine hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 131 140 175 196 245 262 350 490 524 655 700 917 980 1225 1310 1834 2450 2620 3275 3668 4585 4900 6419 6550 9170 12838 13100 17161 18340 22925 25676 32095 34322 45850 64190 68644 85805 91700 120127 128380 160475 171610 240254 320950 343220 429025 480508 600635 641900 840889 858050 1201270 1681778 1716100 2402540 3003175 3363556 4204445 6006350 8408890 12012700 16817780 21022225 42044450 84088900