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12903384606 = 2372347594817
BaseRepresentation
bin11000000010001101…
…00000011000011110
31020022020222212001120
430001012200120132
5202411231301411
65532220151410
7634520650050
oct140106403036
936266885046
1012903384606
115521695922
122601398566
1312a8374928
148a59b98d0
15507c1a106
hex3011a061e

12903384606 has 128 divisors (see below), whose sum is σ = 31969935360. Its totient is φ = 3392159232.

The previous prime is 12903384601. The next prime is 12903384619. The reversal of 12903384606 is 60648330921.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12903384601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2676310 + ... + 2681126.

It is an arithmetic number, because the mean of its divisors is an integer number (249765120).

Almost surely, 212903384606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12903384606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15984967680).

12903384606 is an abundant number, since it is smaller than the sum of its proper divisors (19066550754).

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

12903384606 is a wasteful number, since it uses less digits than its factorization.

12903384606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 12903384606 in words is "twelve billion, nine hundred three million, three hundred eighty-four thousand, six hundred six".

Divisors: 1 2 3 6 7 14 21 23 42 46 47 59 69 94 118 138 141 161 177 282 322 329 354 413 483 658 826 966 987 1081 1239 1357 1974 2162 2478 2714 2773 3243 4071 4817 5546 6486 7567 8142 8319 9499 9634 14451 15134 16638 18998 19411 22701 28497 28902 33719 38822 45402 56994 58233 63779 67438 101157 110791 116466 127558 191337 202314 221582 226399 284203 332373 382674 446453 452798 568406 664746 679197 775537 852609 892906 1339359 1358394 1551074 1584793 1705218 1989421 2326611 2678718 3169586 3978842 4653222 4754379 5207177 5968263 6536669 9508758 10414354 11936526 13073338 13357541 15621531 19610007 26715082 31243062 36450239 39220014 40072623 45756683 72900478 80145246 91513366 93502787 109350717 137270049 187005574 218701434 274540098 280508361 307223443 561016722 614446886 921670329 1843340658 2150564101 4301128202 6451692303 12903384606