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23801770872 = 23321150359747
BaseRepresentation
bin10110001010101100…
…100011001101111000
32021102210020020110100
4112022230203031320
5342221223131442
614533454315400
71501554466665
oct261254431570
967383206410
1023801770872
11a10452a820
1247431b8b60
1323242120b9
14121b198a6c
159448d684c
hex58ab23378

23801770872 has 96 divisors (see below), whose sum is σ = 70464401280. Its totient is φ = 7198198080.

The previous prime is 23801770849. The next prime is 23801770897. The reversal of 23801770872 is 27807710832.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 368503 + ... + 428249.

It is an arithmetic number, because the mean of its divisors is an integer number (734004180).

Almost surely, 223801770872 is an apocalyptic number.

23801770872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23801770872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35232200640).

23801770872 is an abundant number, since it is smaller than the sum of its proper divisors (46662630408).

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

23801770872 is a wasteful number, since it uses less digits than its factorization.

23801770872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60273 (or 60266 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 23801770872 in words is "twenty-three billion, eight hundred one million, seven hundred seventy thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 503 792 1006 1509 2012 3018 4024 4527 5533 6036 9054 11066 12072 16599 18108 22132 33198 36216 44264 49797 59747 66396 99594 119494 132792 179241 199188 238988 358482 398376 477976 537723 657217 716964 1075446 1314434 1433928 1971651 2150892 2628868 3943302 4301784 5257736 5914953 7886604 11829906 15773208 23659812 30052741 47319624 60105482 90158223 120210964 180316446 240421928 270474669 330580151 360632892 540949338 661160302 721265784 991740453 1081898676 1322320604 1983480906 2163797352 2644641208 2975221359 3966961812 5950442718 7933923624 11900885436 23801770872