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1301214312 = 233218072421
BaseRepresentation
bin100110110001110…
…1111010001101000
310100200110112110200
41031203233101220
510131102324222
6333041312200
744150065506
oct11543572150
93320415420
101301214312
11608557632
12303935660
131797718c8
14c4b59676
157937eeac
hex4d8ef468

1301214312 has 24 divisors (see below), whose sum is σ = 3524122290. Its totient is φ = 433738080.

The previous prime is 1301214307. The next prime is 1301214337. The reversal of 1301214312 is 2134121031.

1301214312 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1211457636 + 89756676 = 34806^2 + 9474^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9036139 + ... + 9036282.

Almost surely, 21301214312 is an apocalyptic number.

1301214312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1301214312 is an abundant number, since it is smaller than the sum of its proper divisors (2222907978).

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

1301214312 is a wasteful number, since it uses less digits than its factorization.

1301214312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18072433 (or 18072426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1301214312 is about 36072.3483017117. The cubic root of 1301214312 is about 1091.7325956363.

Adding to 1301214312 its reverse (2134121031), we get a palindrome (3435335343).

The spelling of 1301214312 in words is "one billion, three hundred one million, two hundred fourteen thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 18072421 36144842 54217263 72289684 108434526 144579368 162651789 216869052 325303578 433738104 650607156 1301214312