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1220470130 = 251121953087
BaseRepresentation
bin100100010111110…
…1110010101110010
310011001112022021102
41020233232111302
54444420021010
6321034524402
742146552645
oct11057562562
93131468242
101220470130
11576a18300
122a0896702
13165b10899
14b813ba5c
1572230ba5
hex48bee572

1220470130 has 48 divisors (see below), whose sum is σ = 2541853440. Its totient is φ = 420441120.

The previous prime is 1220470129. The next prime is 1220470177. The reversal of 1220470130 is 310740221.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3554 + ... + 49533.

It is an arithmetic number, because the mean of its divisors is an integer number (52955280).

Almost surely, 21220470130 is an apocalyptic number.

1220470130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220470130 is an abundant number, since it is smaller than the sum of its proper divisors (1321383310).

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

1220470130 is a wasteful number, since it uses less digits than its factorization.

1220470130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53135 (or 53124 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1220470130 is about 34935.2276362986. The cubic root of 1220470130 is about 1068.6669660420. Note that the first 3 decimals are identical.

The spelling of 1220470130 in words is "one billion, two hundred twenty million, four hundred seventy thousand, one hundred thirty".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 121 190 209 242 418 605 1045 1210 2090 2299 4598 11495 22990 53087 106174 265435 530870 583957 1008653 1167914 2017306 2919785 5043265 5839570 6423527 10086530 11095183 12847054 22190366 32117635 55475915 64235270 110951830 122047013 244094026 610235065 1220470130