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2087986212 = 2232132343193
BaseRepresentation
bin111110001110100…
…0010010000100100
312101111220200121200
41330131002100210
513234011024322
6543104442500
7102512406234
oct17435022044
95344820550
102087986212
11981682a44
124a3319430
13273772800
1415b43dcc4
15c34928ac
hex7c742424

2087986212 has 54 divisors (see below), whose sum is σ = 5715209682. Its totient is φ = 642455424.

The previous prime is 2087986181. The next prime is 2087986249. The reversal of 2087986212 is 2126897802.

It can be written as a sum of positive squares in 3 ways, for example, as 117158976 + 1970827236 = 10824^2 + 44394^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 165513 + ... + 177680.

Almost surely, 22087986212 is an apocalyptic number.

It is an amenable number.

2087986212 is an abundant number, since it is smaller than the sum of its proper divisors (3627223470).

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

2087986212 is a wasteful number, since it uses less digits than its factorization.

2087986212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343229 (or 343211 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 2087986212 is about 45694.4877638430. The cubic root of 2087986212 is about 1278.1324923069.

The spelling of 2087986212 in words is "two billion, eighty-seven million, nine hundred eighty-six thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 169 234 338 468 507 676 1014 1521 2028 3042 6084 343193 686386 1029579 1372772 2059158 3088737 4118316 4461509 6177474 8923018 12354948 13384527 17846036 26769054 40153581 53538108 57999617 80307162 115999234 160614324 173998851 231998468 347997702 521996553 695995404 1043993106 2087986212