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489097912400 = 24525572195233
BaseRepresentation
bin1110001111000001000…
…00011110000001010000
31201202110002000021120022
413013200200132001100
531003133031144100
61012404413403012
750223205442366
oct7074040360120
91652402007508
10489097912400
11179475025749
127a959a99468
13371775b5976
141995b35d636
15cac8984e85
hex71e081e050

489097912400 has 60 divisors (see below), whose sum is σ = 1177167889692. Its totient is φ = 195287838720.

The previous prime is 489097912397. The next prime is 489097912409. The reversal of 489097912400 is 4219790984.

It can be written as a sum of positive squares in 6 ways, for example, as 92898163264 + 396199749136 = 304792^2 + 629444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489097912409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 874817 + ... + 1320416.

Almost surely, 2489097912400 is an apocalyptic number.

489097912400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489097912400 is an abundant number, since it is smaller than the sum of its proper divisors (688069977292).

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

489097912400 is a wasteful number, since it uses less digits than its factorization.

489097912400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195808 (or 2195797 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 489097912400 in words is "four hundred eighty-nine billion, ninety-seven million, nine hundred twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 557 1114 2228 2785 4456 5570 8912 11140 13925 22280 27850 44560 55700 111400 222800 2195233 4390466 8780932 10976165 17561864 21952330 35123728 43904660 54880825 87809320 109761650 175618640 219523300 439046600 878093200 1222744781 2445489562 4890979124 6113723905 9781958248 12227447810 19563916496 24454895620 30568619525 48909791240 61137239050 97819582480 122274478100 244548956200 489097912400