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1202131107 = 32532520191
BaseRepresentation
bin100011110100111…
…0001000010100011
310002210000120212100
41013221301002203
54430221143412
6315141501443
741534642262
oct10751610243
93083016770
101202131107
11567631991
12296711883
1316208c4a8
14b59265d9
157080bedc
hex47a710a3

1202131107 has 12 divisors (see below), whose sum is σ = 1769174784. Its totient is φ = 786299280.

The previous prime is 1202131103. The next prime is 1202131127. The reversal of 1202131107 is 7011312021.

It is a happy number.

It is not a de Polignac number, because 1202131107 - 22 = 1202131103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202131107.

It is not an unprimeable number, because it can be changed into a prime (1202131103) 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, 1259619 + ... + 1260572.

It is an arithmetic number, because the mean of its divisors is an integer number (147431232).

Almost surely, 21202131107 is an apocalyptic number.

1202131107 is a deficient number, since it is larger than the sum of its proper divisors (567043677).

1202131107 is a wasteful number, since it uses less digits than its factorization.

1202131107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520250 (or 2520247 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1202131107 is about 34671.7623867031. The cubic root of 1202131107 is about 1063.2872635795.

Adding to 1202131107 its reverse (7011312021), we get a palindrome (8213443128).

The spelling of 1202131107 in words is "one billion, two hundred two million, one hundred thirty-one thousand, one hundred seven".

Divisors: 1 3 9 53 159 477 2520191 7560573 22681719 133570123 400710369 1202131107