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252019680384 = 27323108726251
BaseRepresentation
bin1110101010110110001…
…0110010010010000000
3220002111200111020202110
43222231202302102000
513112114014233014
6311435400215320
724131165636523
oct3525542622200
9802450436673
10252019680384
11979765a2a9a
1240a14a6a540
131a9c4637044
14c2aab50bba
1568502b7d59
hex3aad8b2480

252019680384 has 128 divisors (see below), whose sum is σ = 699202068480. Its totient is φ = 80277120000.

The previous prime is 252019680371. The next prime is 252019680391. The reversal of 252019680384 is 483086910252.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 9587259 + ... + 9613509.

It is an arithmetic number, because the mean of its divisors is an integer number (5462516160).

Almost surely, 2252019680384 is an apocalyptic number.

252019680384 is a gapful number since it is divisible by the number (24) 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 252019680384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349601034240).

252019680384 is an abundant number, since it is smaller than the sum of its proper divisors (447182388096).

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

252019680384 is a wasteful number, since it uses less digits than its factorization.

252019680384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27378 (or 27366 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 252019680384 in words is "two hundred fifty-two billion, nineteen million, six hundred eighty thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 128 138 184 192 276 368 384 552 736 1087 1104 1472 2174 2208 2944 3261 4348 4416 6522 8696 8832 13044 17392 25001 26088 26251 34784 50002 52176 52502 69568 75003 78753 100004 104352 105004 139136 150006 157506 200008 208704 210008 300012 315012 400016 417408 420016 600024 603773 630024 800032 840032 1200048 1207546 1260048 1600064 1680064 1811319 2400096 2415092 2520096 3200128 3360128 3622638 4800192 4830184 5040192 7245276 9600384 9660368 10080384 14490552 19320736 28534837 28981104 38641472 57069674 57962208 77282944 85604511 114139348 115924416 171209022 228278696 231848832 342418044 456557392 656301251 684836088 913114784 1312602502 1369672176 1826229568 1968903753 2625205004 2739344352 3652459136 3937807506 5250410008 5478688704 7875615012 10500820016 10957377408 15751230024 21001640032 31502460048 42003280064 63004920096 84006560128 126009840192 252019680384