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4206720492 = 22321375111969
BaseRepresentation
bin1111101010111101…
…0111010111101100
3101212011200112122200
43322233113113230
532103410023432
61533232341500
7206150351142
oct37257272754
911764615580
104206720492
111869647407
129949a4890
135206bc930
142bc9a5592
151994aaa7c
hexfabd75ec

4206720492 has 72 divisors (see below), whose sum is σ = 11467834560. Its totient is φ = 1292544000.

The previous prime is 4206720443. The next prime is 4206720503. The reversal of 4206720492 is 2940276024.

It is a super-3 number, since 3×42067204923 (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345484 + ... + 357452.

It is an arithmetic number, because the mean of its divisors is an integer number (159275480).

Almost surely, 24206720492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4206720492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5733917280).

4206720492 is an abundant number, since it is smaller than the sum of its proper divisors (7261114068).

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

4206720492 is a wasteful number, since it uses less digits than its factorization.

4206720492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12743 (or 12738 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 4206720492 is about 64859.2359806990. The cubic root of 4206720492 is about 1614.2887457125.

The spelling of 4206720492 in words is "four billion, two hundred six million, seven hundred twenty thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 751 1502 2253 3004 4506 6759 9012 9763 11969 13518 19526 23938 27036 29289 35907 39052 47876 58578 71814 87867 107721 117156 143628 155597 175734 215442 311194 351468 430884 466791 622388 933582 1400373 1867164 2800746 5601492 8988719 17977438 26966157 35954876 53932314 80898471 107864628 116853347 161796942 233706694 323593884 350560041 467413388 701120082 1051680123 1402240164 2103360246 4206720492