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1311470312 = 231371196597
BaseRepresentation
bin100111000101011…
…0111001011101000
310101101202121001112
41032022313023220
510141214022222
6334045205452
744333212415
oct11612671350
93341677045
101311470312
11613322069
12307260888
1317b922b49
14c626910c
157a208be2
hex4e2b72e8

1311470312 has 16 divisors (see below), whose sum is σ = 2476957860. Its totient is φ = 650948224.

The previous prime is 1311470299. The next prime is 1311470317. The reversal of 1311470312 is 2130741131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1284075556 + 27394756 = 35834^2 + 5234^2 .

It is not an unprimeable number, because it can be changed into a prime (1311470317) 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, 597203 + ... + 599394.

Almost surely, 21311470312 is an apocalyptic number.

It is an amenable number.

1311470312 is a deficient number, since it is larger than the sum of its proper divisors (1165487548).

1311470312 is a wasteful number, since it uses less digits than its factorization.

1311470312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196740 (or 1196736 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1311470312 is about 36214.2280326393. The cubic root of 1311470312 is about 1094.5933901720.

The spelling of 1311470312 in words is "one billion, three hundred eleven million, four hundred seventy thousand, three hundred twelve".

Divisors: 1 2 4 8 137 274 548 1096 1196597 2393194 4786388 9572776 163933789 327867578 655735156 1311470312