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1201303212 = 223432328107
BaseRepresentation
bin100011110011010…
…0110111010101100
310002201110112012120
41013212212322230
54430013200322
6315112032540
741524623504
oct10746467254
93081415176
101201303212
1156711697a
12296392750
13161b5c705
14b578ca04
15706e6a5c
hex479a6eac

1201303212 has 24 divisors (see below), whose sum is σ = 2868229056. Its totient is φ = 391121808.

The previous prime is 1201303211. The next prime is 1201303219. The reversal of 1201303212 is 2123031021.

It is a junction number, because it is equal to n+sod(n) for n = 1201303191 and 1201303200.

It is not an unprimeable number, because it can be changed into a prime (1201303211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163538 + ... + 1164569.

It is an arithmetic number, because the mean of its divisors is an integer number (119509544).

Almost surely, 21201303212 is an apocalyptic number.

1201303212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201303212 is an abundant number, since it is smaller than the sum of its proper divisors (1666925844).

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

1201303212 is a wasteful number, since it uses less digits than its factorization.

1201303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328157 (or 2328155 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1201303212 is about 34659.8212920955. The cubic root of 1201303212 is about 1063.0431159532.

Adding to 1201303212 its reverse (2123031021), we get a palindrome (3324334233).

The spelling of 1201303212 in words is "one billion, two hundred one million, three hundred three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 2328107 4656214 6984321 9312428 13968642 27937284 100108601 200217202 300325803 400434404 600651606 1201303212