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102980000 = 255419271
BaseRepresentation
bin1100010001101…
…01100110100000
321011202221000002
412020311212200
5202330330000
614115115132
72360213144
oct610654640
9234687002
10102980000
1153147442
122a5a2aa8
1318448016
14d969224
1590928d5
hex62359a0

102980000 has 120 divisors (see below), whose sum is σ = 267664320. Its totient is φ = 38880000.

The previous prime is 102979979. The next prime is 102980041. The reversal of 102980000 is 89201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 379865 + ... + 380135.

It is an arithmetic number, because the mean of its divisors is an integer number (2230536).

Almost surely, 2102980000 is an apocalyptic number.

102980000 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 102980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133832160).

102980000 is an abundant number, since it is smaller than the sum of its proper divisors (164684320).

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

102980000 is an equidigital number, since it uses as much as digits as its factorization.

102980000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 102980000 is about 10147.9061879779. The cubic root of 102980000 is about 468.7244726839.

The spelling of 102980000 in words is "one hundred two million, nine hundred eighty thousand".

Divisors: 1 2 4 5 8 10 16 19 20 25 32 38 40 50 76 80 95 100 125 152 160 190 200 250 271 304 380 400 475 500 542 608 625 760 800 950 1000 1084 1250 1355 1520 1900 2000 2168 2375 2500 2710 3040 3800 4000 4336 4750 5000 5149 5420 6775 7600 8672 9500 10000 10298 10840 11875 13550 15200 19000 20000 20596 21680 23750 25745 27100 33875 38000 41192 43360 47500 51490 54200 67750 76000 82384 95000 102980 108400 128725 135500 164768 169375 190000 205960 216800 257450 271000 338750 380000 411920 514900 542000 643625 677500 823840 1029800 1084000 1287250 1355000 2059600 2574500 2710000 3218125 4119200 5149000 5420000 6436250 10298000 12872500 20596000 25745000 51490000 102980000