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102488320 = 2851129251
BaseRepresentation
bin1100001101111…
…01100100000000
321010211221112201
412012331210000
5202214111240
614100402544
72353064524
oct606754400
9233757481
10102488320
1152940aa0
122a3a6454
131830529c
14d87bd84
158ee6d9a
hex61bd900

102488320 has 144 divisors (see below), whose sum is σ = 278147520. Its totient is φ = 35840000.

The previous prime is 102488297. The next prime is 102488327. The reversal of 102488320 is 23884201.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102488327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408195 + ... + 408445.

It is an arithmetic number, because the mean of its divisors is an integer number (1931580).

Almost surely, 2102488320 is an apocalyptic number.

102488320 is a gapful number since it is divisible by the number (10) 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 102488320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139073760).

102488320 is an abundant number, since it is smaller than the sum of its proper divisors (175659200).

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

102488320 is a wasteful number, since it uses less digits than its factorization.

102488320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 102488320 is about 10123.6515151402. The cubic root of 102488320 is about 467.9773042784.

The spelling of 102488320 in words is "one hundred two million, four hundred eighty-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 29 32 40 44 55 58 64 80 88 110 116 128 145 160 176 220 232 251 256 290 319 320 352 440 464 502 580 638 640 704 880 928 1004 1160 1255 1276 1280 1408 1595 1760 1856 2008 2320 2510 2552 2761 2816 3190 3520 3712 4016 4640 5020 5104 5522 6380 7040 7279 7424 8032 9280 10040 10208 11044 12760 13805 14080 14558 16064 18560 20080 20416 22088 25520 27610 29116 32128 36395 37120 40160 40832 44176 51040 55220 58232 64256 72790 80069 80320 81664 88352 102080 110440 116464 145580 160138 160640 176704 204160 220880 232928 291160 320276 321280 353408 400345 408320 441760 465856 582320 640552 706816 800690 883520 931712 1164640 1281104 1601380 1767040 1863424 2329280 2562208 3202760 3534080 4658560 5124416 6405520 9317120 10248832 12811040 20497664 25622080 51244160 102488320