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23003052540 = 22351339177529
BaseRepresentation
bin10101011011000101…
…101011100111111100
32012101010022010212220
4111123011223213330
5334102240140130
614322323125340
71443015502056
oct253305534774
965333263786
1023003052540
119834694926
12455b813850
1322278ba6c0
1411830848d6
158e9714410
hex55b16b9fc

23003052540 has 96 divisors (see below), whose sum is σ = 69389974080. Its totient is φ = 5660092416.

The previous prime is 23003052509. The next prime is 23003052577. The reversal of 23003052540 is 4525030032.

It is a self number, because there is not a number n which added to its sum of digits gives 23003052540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3051496 + ... + 3059024.

It is an arithmetic number, because the mean of its divisors is an integer number (722812230).

Almost surely, 223003052540 is an apocalyptic number.

23003052540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003052540 is an abundant number, since it is smaller than the sum of its proper divisors (46386921540).

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

23003052540 is a wasteful number, since it uses less digits than its factorization.

23003052540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11471 (or 11469 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 23003052540 its reverse (4525030032), we get a palindrome (27528082572).

The spelling of 23003052540 in words is "twenty-three billion, three million, fifty-two thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 3917 7529 7834 11751 15058 15668 19585 22587 23502 30116 37645 39170 45174 47004 50921 58755 75290 78340 90348 97877 101842 112935 117510 150580 152763 195754 203684 225870 235020 254605 293631 305526 391508 451740 489385 509210 587262 611052 763815 978770 1018420 1174524 1468155 1527630 1957540 2936310 3055260 5872620 29491093 58982186 88473279 117964372 147455465 176946558 294910930 353893116 383384209 442366395 589821860 766768418 884732790 1150152627 1533536836 1769465580 1916921045 2300305254 3833842090 4600610508 5750763135 7667684180 11501526270 23003052540