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1201213350 = 2325229831109
BaseRepresentation
bin100011110011001…
…0000111110100110
310002201021221221100
41013212100332212
54430002311400
6315110100530
741524100511
oct10746207646
93081257840
101201213350
11567065407
1229634a746
13161b2a83c
14b5767d78
15706ca100
hex47990fa6

1201213350 has 144 divisors (see below), whose sum is σ = 3381814800. Its totient is φ = 305276160.

The previous prime is 1201213339. The next prime is 1201213369. The reversal of 1201213350 is 533121021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1082596 + ... + 1083704.

It is an arithmetic number, because the mean of its divisors is an integer number (23484825).

Almost surely, 21201213350 is an apocalyptic number.

1201213350 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 1201213350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690907400).

1201213350 is an abundant number, since it is smaller than the sum of its proper divisors (2180601450).

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

1201213350 is a wasteful number, since it uses less digits than its factorization.

1201213350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1201213350 is about 34658.5249253340. The cubic root of 1201213350 is about 1063.0166087507.

Adding to 1201213350 its reverse (533121021), we get a palindrome (1734334371).

The spelling of 1201213350 in words is "one billion, two hundred one million, two hundred thirteen thousand, three hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 29 30 45 50 58 75 83 87 90 145 150 166 174 225 249 261 290 415 435 450 498 522 725 747 830 870 1109 1245 1305 1450 1494 2075 2175 2218 2407 2490 2610 3327 3735 4150 4350 4814 5545 6225 6525 6654 7221 7470 9981 11090 12035 12450 13050 14442 16635 18675 19962 21663 24070 27725 32161 33270 36105 37350 43326 49905 55450 60175 64322 72210 83175 92047 96483 99810 108315 120350 160805 166350 180525 184094 192966 216630 249525 276141 289449 321610 361050 460235 482415 499050 541575 552282 578898 804025 828423 920470 964830 1083150 1380705 1447245 1608050 1656846 2301175 2412075 2669363 2761410 2894490 4142115 4602350 4824150 5338726 6903525 7236225 8008089 8284230 13346815 13807050 14472450 16016178 20710575 24024267 26693630 40040445 41421150 48048534 66734075 80080890 120121335 133468150 200202225 240242670 400404450 600606675 1201213350