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130044550 = 25219136889
BaseRepresentation
bin1111100000001…
…01001010000110
3100001200221120211
413300011022012
5231242411200
620523150034
73136234426
oct760051206
9301627524
10130044550
1167452439
123767531a
1320c32b4c
14133b2486
15b63baba
hex7c05286

130044550 has 24 divisors (see below), whose sum is σ = 254615400. Its totient is φ = 49279680.

The previous prime is 130044547. The next prime is 130044557. The reversal of 130044550 is 55440031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130044557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67495 + ... + 69394.

It is an arithmetic number, because the mean of its divisors is an integer number (10608975).

Almost surely, 2130044550 is an apocalyptic number.

130044550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130044550 is a deficient number, since it is larger than the sum of its proper divisors (124570850).

130044550 is a wasteful number, since it uses less digits than its factorization.

130044550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136920 (or 136915 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 130044550 is about 11403.7077303831. The cubic root of 130044550 is about 506.6375622902.

Adding to 130044550 its reverse (55440031), we get a palindrome (185484581).

The spelling of 130044550 in words is "one hundred thirty million, forty-four thousand, five hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 950 136889 273778 684445 1368890 2600891 3422225 5201782 6844450 13004455 26008910 65022275 130044550