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23143322340 = 22325909114143
BaseRepresentation
bin10101100011011100…
…110001001011100100
32012201220020120212200
4111203130301023210
5334344142303330
614344253414500
71446340664655
oct254334611344
965656216780
1023143322340
1198a6890686
12459a79a430
13224a990798
14119795952c
15906bc0a60
hex5637312e4

23143322340 has 72 divisors (see below), whose sum is σ = 70214097408. Its totient is φ = 6170437440.

The previous prime is 23143322333. The next prime is 23143322353. The reversal of 23143322340 is 4322334132.

23143322340 is a `hidden beast` number, since 2 + 3 + 1 + 433 + 223 + 4 + 0 = 666.

It is a super-2 number, since 2×231433223402 (a number of 22 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1629309 + ... + 1643451.

Almost surely, 223143322340 is an apocalyptic number.

23143322340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23143322340 is an abundant number, since it is smaller than the sum of its proper divisors (47070775068).

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

23143322340 is a wasteful number, since it uses less digits than its factorization.

23143322340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23249 (or 23244 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 23143322340 its reverse (4322334132), we get a palindrome (27465656472).

The spelling of 23143322340 in words is "twenty-three billion, one hundred forty-three million, three hundred twenty-two thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 9091 14143 18182 27273 28286 36364 42429 45455 54546 56572 70715 81819 84858 90910 109092 127287 136365 141430 163638 169716 181820 212145 254574 272730 282860 327276 409095 424290 509148 545460 636435 818190 848580 1272870 1636380 2545740 128574013 257148026 385722039 514296052 642870065 771444078 1157166117 1285740130 1542888156 1928610195 2314332234 2571480260 3857220390 4628664468 5785830585 7714440780 11571661170 23143322340