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2130024440 = 235173317971
BaseRepresentation
bin111111011110101…
…1001011111111000
312111110000110020002
41332331121133320
513330241240230
6551205452132
7103532623535
oct17675313770
95443013202
102130024440
119a3385985
124b5411048
1327c3a0cbb
14162c63d8c
15c6ee8545
hex7ef597f8

2130024440 has 64 divisors (see below), whose sum is σ = 4840443360. Its totient is φ = 843543040.

The previous prime is 2130024439. The next prime is 2130024467. The reversal of 2130024440 is 444200312.

It is a super-2 number, since 2×21300244402 = 9074008229994627200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2193155 + ... + 2194125.

Almost surely, 22130024440 is an apocalyptic number.

2130024440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130024440 is an abundant number, since it is smaller than the sum of its proper divisors (2710418920).

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

2130024440 is a wasteful number, since it uses less digits than its factorization.

2130024440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2130024440 is about 46152.1878137971. The cubic root of 2130024440 is about 1286.6532722825.

Adding to 2130024440 its reverse (444200312), we get a palindrome (2574224752).

The spelling of 2130024440 in words is "two billion, one hundred thirty million, twenty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 173 317 346 634 692 865 971 1268 1384 1585 1730 1942 2536 3170 3460 3884 4855 6340 6920 7768 9710 12680 19420 38840 54841 109682 167983 219364 274205 307807 335966 438728 548410 615614 671932 839915 1096820 1231228 1343864 1539035 1679830 2193640 2462456 3078070 3359660 6156140 6719320 12312280 53250611 106501222 213002444 266253055 426004888 532506110 1065012220 2130024440