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2239898490 = 232531802831
BaseRepresentation
bin1000010110000010…
…0010001101111010
312210002202122002100
42011200202031322
514041403222430
61010132444230
7106335552204
oct20540421572
95702678070
102239898490
11a4a400985
12526179676
13299090c2b
141736a5774
15d199d960
hex8582237a

2239898490 has 48 divisors (see below), whose sum is σ = 6011606016. Its totient is φ = 578037600.

The previous prime is 2239898483. The next prime is 2239898497. The reversal of 2239898490 is 948989322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2239898483) and next prime (2239898497).

It is not an unprimeable number, because it can be changed into a prime (2239898497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398626 + ... + 404205.

It is an arithmetic number, because the mean of its divisors is an integer number (125241792).

Almost surely, 22239898490 is an apocalyptic number.

2239898490 is an abundant number, since it is smaller than the sum of its proper divisors (3771707526).

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

2239898490 is a wasteful number, since it uses less digits than its factorization.

2239898490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802875 (or 802872 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 2239898490 is about 47327.5658575423. The cubic root of 2239898490 is about 1308.4067591375.

The spelling of 2239898490 in words is "two billion, two hundred thirty-nine million, eight hundred ninety-eight thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 465 558 930 1395 2790 802831 1605662 2408493 4014155 4816986 7225479 8028310 12042465 14450958 24084930 24887761 36127395 49775522 72254790 74663283 124438805 149326566 223989849 248877610 373316415 447979698 746632830 1119949245 2239898490