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130430550 = 23523771331
BaseRepresentation
bin1111100011000…
…11011001010110
3100002102120002010
413301203121112
5231342234200
620535325050
73142432665
oct761433126
9302376063
10130430550
1167696448
1237820786
1321039753
1413472ddc
15b6b6150
hex7c63656

130430550 has 96 divisors (see below), whose sum is σ = 337906944. Its totient is φ = 33264000.

The previous prime is 130430519. The next prime is 130430557. The reversal of 130430550 is 55034031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130430557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 393885 + ... + 394215.

It is an arithmetic number, because the mean of its divisors is an integer number (3519864).

Almost surely, 2130430550 is an apocalyptic number.

130430550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130430550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168953472).

130430550 is an abundant number, since it is smaller than the sum of its proper divisors (207476394).

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

130430550 is a wasteful number, since it uses less digits than its factorization.

130430550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 130430550 is about 11420.6195103418. The cubic root of 130430550 is about 507.1383366465.

Adding to 130430550 its reverse (55034031), we get a palindrome (185464581).

The spelling of 130430550 in words is "one hundred thirty million, four hundred thirty thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 37 50 71 74 75 111 142 150 185 213 222 331 355 370 426 555 662 710 925 993 1065 1110 1655 1775 1850 1986 2130 2627 2775 3310 3550 4965 5254 5325 5550 7881 8275 9930 10650 12247 13135 15762 16550 23501 24494 24825 26270 36741 39405 47002 49650 61235 65675 70503 73482 78810 117505 122470 131350 141006 183705 197025 235010 306175 352515 367410 394050 587525 612350 705030 869537 918525 1175050 1739074 1762575 1837050 2608611 3525150 4347685 5217222 8695370 13043055 21738425 26086110 43476850 65215275 130430550