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90807230 = 2515757839
BaseRepresentation
bin1010110100110…
…01101110111110
320022212111002202
411122121232332
5141221312410
613002151502
72151564053
oct532315676
9208774082
1090807230
11472928a8
12264b2592
1315a754b7
14c0bb02a
157e8aca5
hex5699bbe

90807230 has 16 divisors (see below), whose sum is σ = 164496960. Its totient is φ = 36090912.

The previous prime is 90807221. The next prime is 90807239. The reversal of 90807230 is 3270809.

It is an interprime number because it is at equal distance from previous prime (90807221) and next prime (90807239).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 90807193 and 90807202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90807239) by changing a digit.

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, 27350 + ... + 30489.

It is an arithmetic number, because the mean of its divisors is an integer number (10281060).

Almost surely, 290807230 is an apocalyptic number.

90807230 is a deficient number, since it is larger than the sum of its proper divisors (73689730).

90807230 is a wasteful number, since it uses less digits than its factorization.

90807230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58003.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 90807230 is about 9529.2827641958. The cubic root of 90807230 is about 449.4763126060.

The spelling of 90807230 in words is "ninety million, eight hundred seven thousand, two hundred thirty".

Divisors: 1 2 5 10 157 314 785 1570 57839 115678 289195 578390 9080723 18161446 45403615 90807230