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1270664412 = 223105888701
BaseRepresentation
bin100101110111100…
…1100110011011100
310021112222102212220
41023233030303130
510100242230122
6330030425340
743326316653
oct11357146334
93245872786
101270664412
115a2290a86
122b5662250
13173336544
14c0a8619a
157684825c
hex4bbcccdc

1270664412 has 12 divisors (see below), whose sum is σ = 2964883656. Its totient is φ = 423554800.

The previous prime is 1270664399. The next prime is 1270664419. The reversal of 1270664412 is 2144660721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12706644122 = 3229176095846611488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270664419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52944339 + ... + 52944362.

It is an arithmetic number, because the mean of its divisors is an integer number (247073638).

Almost surely, 21270664412 is an apocalyptic number.

1270664412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1270664412 is an abundant number, since it is smaller than the sum of its proper divisors (1694219244).

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

1270664412 is a wasteful number, since it uses less digits than its factorization.

1270664412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105888708 (or 105888706 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1270664412 is about 35646.3800686690. The cubic root of 1270664412 is about 1083.1209484927.

The spelling of 1270664412 in words is "one billion, two hundred seventy million, six hundred sixty-four thousand, four hundred twelve".