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2087623928 = 2313291076469
BaseRepresentation
bin111110001101110…
…1001110011111000
312101111020021122202
41330123221303320
513233412431203
6543053005332
7102506340065
oct17433516370
95344207582
102087623928
11981455835
124a3183848
13273676940
1415b387c6c
15c3420388
hex7c6e9cf8

2087623928 has 64 divisors (see below), whose sum is σ = 4402188000. Its totient is φ = 921457152.

The previous prime is 2087623927. The next prime is 2087623939. The reversal of 2087623928 is 8293267802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087623921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319478 + ... + 325946.

Almost surely, 22087623928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2087623928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2201094000).

2087623928 is an abundant number, since it is smaller than the sum of its proper divisors (2314564072).

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

2087623928 is a wasteful number, since it uses less digits than its factorization.

2087623928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6624 (or 6620 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 2087623928 is about 45690.5233938067. The cubic root of 2087623928 is about 1278.0585656157.

The spelling of 2087623928 in words is "two billion, eighty-seven million, six hundred twenty-three thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 13 26 29 52 58 104 107 116 214 232 377 428 754 856 1391 1508 2782 3016 3103 5564 6206 6469 11128 12412 12938 24824 25876 40339 51752 80678 84097 161356 168194 187601 322712 336388 375202 672776 692183 750404 1384366 1500808 2438813 2768732 4877626 5537464 8998379 9755252 17996758 19510504 20073307 35993516 40146614 71987032 80293228 160586456 260952991 521905982 1043811964 2087623928