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1301385472 = 285083537
BaseRepresentation
bin100110110010001…
…1001000100000000
310100200210020020221
41031210121010000
510131123313342
6333045112424
744151410512
oct11544310400
93320706227
101301385472
11608664192
123039b8714
1317980179a
14c4ba1bb2
15793b5a67
hex4d919100

1301385472 has 18 divisors (see below), whose sum is σ = 2597687918. Its totient is φ = 650692608.

The previous prime is 1301385451. The next prime is 1301385473. The reversal of 1301385472 is 2745831031.

It can be written as a sum of positive squares in only one way, i.e., 1234538496 + 66846976 = 35136^2 + 8176^2 .

It is not an unprimeable number, because it can be changed into a prime (1301385473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541513 + ... + 2542024.

Almost surely, 21301385472 is an apocalyptic number.

It is an amenable number.

1301385472 is a deficient number, since it is larger than the sum of its proper divisors (1296302446).

1301385472 is an frugal number, since it uses more digits than its factorization.

1301385472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083553 (or 5083539 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1301385472 is about 36074.7206780593. The cubic root of 1301385472 is about 1091.7804618888.

The spelling of 1301385472 in words is "one billion, three hundred one million, three hundred eighty-five thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 128 256 5083537 10167074 20334148 40668296 81336592 162673184 325346368 650692736 1301385472