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131111102 = 2195133601
BaseRepresentation
bin1111101000010…
…01100010111110
3100010201010121202
413310021202332
5232031023402
621002055502
73151266053
oct764114276
9303633552
10131111102
1168010791
1237aaa592
1321217445
14135ad02a
15b79cb02
hex7d098be

131111102 has 8 divisors (see below), whose sum is σ = 196773312. Its totient is φ = 65520000.

The previous prime is 131111093. The next prime is 131111107. The reversal of 131111102 is 201111131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131111107) 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, 12899 + ... + 20702.

It is an arithmetic number, because the mean of its divisors is an integer number (24596664).

Almost surely, 2131111102 is an apocalyptic number.

131111102 is a deficient number, since it is larger than the sum of its proper divisors (65662210).

131111102 is a wasteful number, since it uses less digits than its factorization.

131111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35554.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 131111102 is about 11450.3756270264. The cubic root of 131111102 is about 508.0188447553.

Adding to 131111102 its reverse (201111131), we get a palindrome (332222233).

The spelling of 131111102 in words is "one hundred thirty-one million, one hundred eleven thousand, one hundred two".

Divisors: 1 2 1951 3902 33601 67202 65555551 131111102