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2430032020 = 22513171374013
BaseRepresentation
bin1001000011010111…
…0101100010010100
320021100112102020221
42100311311202110
514434042011040
61041044004124
7114134634313
oct22065654224
96240472227
102430032020
111037765029
12579990644
132c95a2390
14190a3a27a
15e350974a
hex90d75894

2430032020 has 96 divisors (see below), whose sum is σ = 5862816288. Its totient is φ = 838090752.

The previous prime is 2430031991. The next prime is 2430032029. The reversal of 2430032020 is 202300342.

It can be written as a sum of positive squares in 16 ways, for example, as 187251856 + 2242780164 = 13684^2 + 47358^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2430031985 and 2430032003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2430032029) 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, 603534 + ... + 607546.

It is an arithmetic number, because the mean of its divisors is an integer number (61071003).

Almost surely, 22430032020 is an apocalyptic number.

2430032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2430032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2931408144).

2430032020 is an abundant number, since it is smaller than the sum of its proper divisors (3432784268).

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

2430032020 is a wasteful number, since it uses less digits than its factorization.

2430032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 2430032020 is about 49295.3549535856. The cubic root of 2430032020 is about 1344.4273290680.

Adding to 2430032020 its reverse (202300342), we get a palindrome (2632332362).

The spelling of 2430032020 in words is "two billion, four hundred thirty million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 13 17 20 26 34 52 65 68 85 130 137 170 221 260 274 340 442 548 685 884 1105 1370 1781 2210 2329 2740 3562 4013 4420 4658 7124 8026 8905 9316 11645 16052 17810 20065 23290 30277 35620 40130 46580 52169 60554 68221 80260 104338 121108 136442 151385 208676 260845 272884 302770 341105 521690 549781 605540 682210 886873 1043380 1099562 1364420 1773746 2199124 2748905 3547492 4434365 5497810 7147153 8868730 9346277 10995620 14294306 17737460 18692554 28588612 35735765 37385108 46731385 71471530 93462770 121501601 142943060 186925540 243003202 486006404 607508005 1215016010 2430032020