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24102121340 = 22511252143457
BaseRepresentation
bin10110011100100110…
…010010111101111100
32022012201101121211202
4112130212102331330
5343330120340330
615023344035032
71512162436223
oct263446227574
968181347752
1024102121340
11a249023550
124807902a78
13237150357b
14124901dcba
15960e64445
hex59c992f7c

24102121340 has 48 divisors (see below), whose sum is σ = 55238942304. Its totient is φ = 8760729600.

The previous prime is 24102121339. The next prime is 24102121343. The reversal of 24102121340 is 4312120142.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24102121343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532892 + ... + 576348.

It is an arithmetic number, because the mean of its divisors is an integer number (1150811298).

Almost surely, 224102121340 is an apocalyptic number.

24102121340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24102121340 is an abundant number, since it is smaller than the sum of its proper divisors (31136820964).

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

24102121340 is a wasteful number, since it uses less digits than its factorization.

24102121340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45998 (or 45996 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 24102121340 its reverse (4312120142), we get a palindrome (28414241482).

The spelling of 24102121340 in words is "twenty-four billion, one hundred two million, one hundred twenty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 2521 5042 10084 12605 25210 27731 43457 50420 55462 86914 110924 138655 173828 217285 277310 434570 478027 554620 869140 956054 1912108 2390135 4780270 9560540 109555097 219110194 438220388 547775485 1095550970 1205106067 2191101940 2410212134 4820424268 6025530335 12051060670 24102121340