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27950145284 = 22233759139169
BaseRepresentation
bin11010000001111101…
…010101111100000100
32200010220010111100002
4122001331111330010
5424220214122114
620501244340432
72006426213015
oct320175257404
980126114302
1027950145284
1110943145926
125500544718
1328357b3809
1414d20d300c
15ad8bb97de
hex681f55f04

27950145284 has 48 divisors (see below), whose sum is σ = 53307676800. Its totient is φ = 12785642496.

The previous prime is 27950145257. The next prime is 27950145299. The reversal of 27950145284 is 48254105972.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131252 + ... + 270420.

It is an arithmetic number, because the mean of its divisors is an integer number (1110576600).

Almost surely, 227950145284 is an apocalyptic number.

It is an amenable number.

27950145284 is a deficient number, since it is larger than the sum of its proper divisors (25357531516).

27950145284 is a wasteful number, since it uses less digits than its factorization.

27950145284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139292 (or 139290 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 27950145284 in words is "twenty-seven billion, nine hundred fifty million, one hundred forty-five thousand, two hundred eighty-four".

Divisors: 1 2 4 23 37 46 59 74 92 118 148 236 851 1357 1702 2183 2714 3404 4366 5428 8732 50209 100418 139169 200836 278338 556676 3200887 5149253 6401774 8210971 10298506 12803548 16421942 20597012 32843884 118432819 188852333 236865638 303805927 377704666 473731276 607611854 755409332 1215223708 6987536321 13975072642 27950145284