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90062230 = 2561191773
BaseRepresentation
bin1010101111000…
…11110110010110
320021110122011011
411113203312112
5141023442410
612534202434
72142342046
oct527436626
9207418134
1090062230
11469240a5
12261b341a
131587437b
14bd65726
157d9018a
hex55e3d96

90062230 has 32 divisors (see below), whose sum is σ = 165846528. Its totient is φ = 35203200.

The previous prime is 90062207. The next prime is 90062233. The reversal of 90062230 is 3226009.

It is a super-2 number, since 2×900622302 = 16222410545145800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90062233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116124 + ... + 116896.

It is an arithmetic number, because the mean of its divisors is an integer number (5182704).

Almost surely, 290062230 is an apocalyptic number.

90062230 is a deficient number, since it is larger than the sum of its proper divisors (75784298).

90062230 is a wasteful number, since it uses less digits than its factorization.

90062230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 90062230 is about 9490.1122227295. The cubic root of 90062230 is about 448.2437389394.

Adding to 90062230 its reverse (3226009), we get a palindrome (93288239).

It can be divided in two parts, 9006 and 2230, that added together give a square (11236 = 1062).

The spelling of 90062230 in words is "ninety million, sixty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 61 122 191 305 382 610 773 955 1546 1910 3865 7730 11651 23302 47153 58255 94306 116510 147643 235765 295286 471530 738215 1476430 9006223 18012446 45031115 90062230