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255500505050 = 25271861392263
BaseRepresentation
bin1110110111110100000…
…1000100111111011010
3220102111021021110112112
43231331001010333122
513141231112130200
6313213022312322
724313353313430
oct3557501047732
9812437243475
10255500505050
11993a241309a
12416267286a2
131b12a81b6cb
14c51b15ad50
1569a5b88535
hex3b7d044fda

255500505050 has 48 divisors (see below), whose sum is σ = 543414302592. Its totient is φ = 87552878400.

The previous prime is 255500505023. The next prime is 255500505089. The reversal of 255500505050 is 50505005552.

255500505050 is a modest number, since divided by 505050 gives 255500 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 255500504998 and 255500505016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455219 + ... + 847481.

It is an arithmetic number, because the mean of its divisors is an integer number (11321131304).

Almost surely, 2255500505050 is an apocalyptic number.

255500505050 is an abundant number, since it is smaller than the sum of its proper divisors (287913797542).

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

255500505050 is a wasteful number, since it uses less digits than its factorization.

255500505050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394143 (or 394138 counting only the distinct ones).

The product of its (nonzero) digits is 31250, while the sum is 32.

The spelling of 255500505050 in words is "two hundred fifty-five billion, five hundred million, five hundred five thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 1861 3722 9305 13027 18610 26054 46525 65135 93050 130270 325675 392263 651350 784526 1961315 2745841 3922630 5491682 9806575 13729205 19613150 27458410 68646025 137292050 730001443 1460002886 3650007215 5110010101 7300014430 10220020202 18250036075 25550050505 36500072150 51100101010 127750252525 255500505050