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1201302061 = 2926612161
BaseRepresentation
bin100011110011010…
…0110101000101101
310002201110110121221
41013212212220231
54430013131221
6315112023341
741524620241
oct10746465055
93081413557
101201302061
11567116023
12296391b51
13161b5c02b
14b578c421
15706e6541
hex479a6a2d

1201302061 has 12 divisors (see below), whose sum is σ = 1246613524. Its totient is φ = 1157587200.

The previous prime is 1201302043. The next prime is 1201302073. The reversal of 1201302061 is 1602031021.

It can be written as a sum of positive squares in 6 ways, for example, as 71064900 + 1130237161 = 8430^2 + 33619^2 .

It is not a de Polignac number, because 1201302061 - 211 = 1201300013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201302031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 554821 + ... + 556981.

Almost surely, 21201302061 is an apocalyptic number.

It is an amenable number.

1201302061 is a deficient number, since it is larger than the sum of its proper divisors (45311463).

1201302061 is an equidigital number, since it uses as much as digits as its factorization.

1201302061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1201302061 is about 34659.8046878513. The cubic root of 1201302061 is about 1063.0427764433.

Adding to 1201302061 its reverse (1602031021), we get a palindrome (2803333082).

The spelling of 1201302061 in words is "one billion, two hundred one million, three hundred two thousand, sixty-one".

Divisors: 1 29 661 841 2161 19169 62669 555901 1428421 1817401 41424209 1201302061