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2021434030 = 257114995261
BaseRepresentation
bin111100001111100…
…1010001010101110
312012212200111012001
41320133022022232
513114441342110
6532330202514
7101043622450
oct17037121256
95185614161
102021434030
11948057340
12484b8343a
13262a40415
141526782d0
15bc6e863a
hex787ca2ae

2021434030 has 64 divisors (see below), whose sum is σ = 4546368000. Its totient is φ = 628675200.

The previous prime is 2021434027. The next prime is 2021434069. The reversal of 2021434030 is 304341202.

It is a junction number, because it is equal to n+sod(n) for n = 2021433989 and 2021434007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381600 + ... + 386860.

It is an arithmetic number, because the mean of its divisors is an integer number (71037000).

Almost surely, 22021434030 is an apocalyptic number.

2021434030 is an abundant number, since it is smaller than the sum of its proper divisors (2524933970).

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

2021434030 is a wasteful number, since it uses less digits than its factorization.

2021434030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5785.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2021434030 is about 44960.3606524681. The cubic root of 2021434030 is about 1264.4059306002.

Adding to 2021434030 its reverse (304341202), we get a palindrome (2325775232).

The spelling of 2021434030 in words is "two billion, twenty-one million, four hundred thirty-four thousand, thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 499 770 998 2495 3493 4990 5261 5489 6986 10522 10978 17465 26305 27445 34930 36827 38423 52610 54890 57871 73654 76846 115742 184135 192115 289355 368270 384230 405097 578710 810194 2025485 2625239 4050970 5250478 13126195 18376673 26252390 28877629 36753346 57755258 91883365 144388145 183766730 202143403 288776290 404286806 1010717015 2021434030