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12883861470 = 2352394119843
BaseRepresentation
bin10111111111111000…
…00001111111011110
31020020220020222100110
423333330001333132
5202341232031340
65530241510450
7634163005224
oct137774017736
936226228313
1012883861470
1155116708a7
1225b6942426
1312a42ca58c
148a3176b14
15506160680
hex2fff01fde

12883861470 has 64 divisors (see below), whose sum is σ = 32301586944. Its totient is φ = 3282660480.

The previous prime is 12883861433. The next prime is 12883861477. The reversal of 12883861470 is 7416838821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12883861477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639369 + ... + 659211.

It is an arithmetic number, because the mean of its divisors is an integer number (504712296).

Almost surely, 212883861470 is an apocalyptic number.

12883861470 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 12883861470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16150793472).

12883861470 is an abundant number, since it is smaller than the sum of its proper divisors (19417725474).

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

12883861470 is a wasteful number, since it uses less digits than its factorization.

12883861470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20817.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 12883861470 in words is "twelve billion, eight hundred eighty-three million, eight hundred sixty-one thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 941 1882 2823 4705 5646 9410 14115 19843 21643 28230 39686 43286 59529 64929 99215 108215 119058 129858 198430 216430 297645 324645 456389 595290 649290 912778 1369167 2281945 2738334 4563890 6845835 13691670 18672263 37344526 56016789 93361315 112033578 186722630 280083945 429462049 560167890 858924098 1288386147 2147310245 2576772294 4294620490 6441930735 12883861470