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130890368 = 277241509
BaseRepresentation
bin1111100110100…
…11101010000000
3100010021220211102
413303103222000
5232001442433
620553233532
73146356400
oct763235200
9303256742
10130890368
116797a964
1237a028a8
132116ab2b
1413552800
15b7574e8
hex7cd3a80

130890368 has 96 divisors (see below), whose sum is σ = 311339700. Its totient is φ = 54620160.

The previous prime is 130890367. The next prime is 130890407. The reversal of 130890368 is 863098031.

It can be written as a sum of positive squares in 2 ways, for example, as 129231424 + 1658944 = 11368^2 + 1288^2 .

It is not an unprimeable number, because it can be changed into a prime (130890367) 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 11 ways as a sum of consecutive naturals, for example, 256898 + ... + 257406.

Almost surely, 2130890368 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 130890368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155669850).

130890368 is an abundant number, since it is smaller than the sum of its proper divisors (180449332).

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

130890368 is an equidigital number, since it uses as much as digits as its factorization.

130890368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 130890368 is about 11440.7328436600. The cubic root of 130890368 is about 507.7335904459.

The spelling of 130890368 in words is "one hundred thirty million, eight hundred ninety thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 41 49 56 64 82 98 112 128 164 196 224 287 328 392 448 509 574 656 784 896 1018 1148 1312 1568 2009 2036 2296 2624 3136 3563 4018 4072 4592 5248 6272 7126 8036 8144 9184 14252 16072 16288 18368 20869 24941 28504 32144 32576 36736 41738 49882 57008 64288 65152 83476 99764 114016 128576 146083 166952 199528 228032 257152 292166 333904 399056 456064 584332 667808 798112 1022581 1168664 1335616 1596224 2045162 2337328 2671232 3192448 4090324 4674656 8180648 9349312 16361296 18698624 32722592 65445184 130890368