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1200023130 = 235831034679
BaseRepresentation
bin100011110000110…
…1110011001011010
310002122001111021010
41013201232121122
54424201220010
6315024354350
741511012465
oct10741563132
93078044233
101200023130
11566422159
12295a759b6
13161801b77
14b55382dc
1570542620
hex4786e65a

1200023130 has 64 divisors (see below), whose sum is σ = 2943682560. Its totient is φ = 313014336.

The previous prime is 1200023119. The next prime is 1200023177. The reversal of 1200023130 is 313200021.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254131 + ... + 258809.

It is an arithmetic number, because the mean of its divisors is an integer number (45995040).

Almost surely, 21200023130 is an apocalyptic number.

1200023130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200023130 is an abundant number, since it is smaller than the sum of its proper divisors (1743659430).

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

1200023130 is a wasteful number, since it uses less digits than its factorization.

1200023130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1200023130 is about 34641.3500025620. The cubic root of 1200023130 is about 1062.6653967201.

Adding to 1200023130 its reverse (313200021), we get a palindrome (1513223151).

The spelling of 1200023130 in words is "one billion, two hundred million, twenty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 83 103 166 206 249 309 415 498 515 618 830 1030 1245 1545 2490 3090 4679 8549 9358 14037 17098 23395 25647 28074 42745 46790 51294 70185 85490 128235 140370 256470 388357 481937 776714 963874 1165071 1445811 1941785 2330142 2409685 2891622 3883570 4819370 5825355 7229055 11650710 14458110 40000771 80001542 120002313 200003855 240004626 400007710 600011565 1200023130