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1213462464 = 2636320117
BaseRepresentation
bin100100001010011…
…1111011111000000
310010120100021120020
41020110333133000
54441121244324
6320224413440
742033155304
oct11024773700
93116307506
101213462464
11572a71345
1229a477280
13164529036
14b7235d04
15717e9679
hex4853f7c0

1213462464 has 28 divisors (see below), whose sum is σ = 3210619944. Its totient is φ = 404487424.

The previous prime is 1213462463. The next prime is 1213462483. The reversal of 1213462464 is 4642643121.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213462463) 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, 3159867 + ... + 3160250.

It is an arithmetic number, because the mean of its divisors is an integer number (114664998).

Almost surely, 21213462464 is an apocalyptic number.

It is an amenable number.

1213462464 is an abundant number, since it is smaller than the sum of its proper divisors (1997157480).

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

1213462464 is an equidigital number, since it uses as much as digits as its factorization.

1213462464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6320132 (or 6320122 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 1213462464 is about 34834.7881291102. The cubic root of 1213462464 is about 1066.6176901124.

The spelling of 1213462464 in words is "one billion, two hundred thirteen million, four hundred sixty-two thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 6320117 12640234 18960351 25280468 37920702 50560936 75841404 101121872 151682808 202243744 303365616 404487488 606731232 1213462464