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10771312212 = 2232417297637
BaseRepresentation
bin10100000100000010…
…10010111001010100
31000210200010100120100
422002001102321110
5134024423442322
64540454334100
7530631433413
oct120201227124
930720110510
1010771312212
114628141321
12210735a330
13102873772b
1474278147a
15430969dac
hex282052e54

10771312212 has 36 divisors (see below), whose sum is σ = 27891572436. Its totient is φ = 3502865280.

The previous prime is 10771312199. The next prime is 10771312261. The reversal of 10771312212 is 21221317701.

It can be written as a sum of positive squares in 2 ways, for example, as 1016589456 + 9754722756 = 31884^2 + 98766^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3647343 + ... + 3650294.

It is an arithmetic number, because the mean of its divisors is an integer number (774765901).

Almost surely, 210771312212 is an apocalyptic number.

10771312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10771312212 is an abundant number, since it is smaller than the sum of its proper divisors (17120260224).

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

10771312212 is a wasteful number, since it uses less digits than its factorization.

10771312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297688 (or 7297683 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

Adding to 10771312212 its reverse (21221317701), we get a palindrome (31992629913).

It can be divided in two parts, 10771312 and 212, that added together give a square (10771524 = 32822).

The spelling of 10771312212 in words is "ten billion, seven hundred seventy-one million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 7297637 14595274 21892911 29190548 43785822 65678733 87571644 131357466 262714932 299203117 598406234 897609351 1196812468 1795218702 2692828053 3590437404 5385656106 10771312212