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131444102 = 21713728219
BaseRepresentation
bin1111101010110…
…10110110000110
3100011100001102002
413311122312012
5232122202402
621013145302
73154153646
oct765326606
9304301362
10131444102
1168218999
123802b232
1321302b9a
1413658526
15b816602
hex7d5ad86

131444102 has 16 divisors (see below), whose sum is σ = 210295440. Its totient is φ = 61402368.

The previous prime is 131444087. The next prime is 131444129. The reversal of 131444102 is 201444131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9452 + ... + 18767.

It is an arithmetic number, because the mean of its divisors is an integer number (13143465).

Almost surely, 2131444102 is an apocalyptic number.

131444102 is a deficient number, since it is larger than the sum of its proper divisors (78851338).

131444102 is a wasteful number, since it uses less digits than its factorization.

131444102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28375.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 131444102 is about 11464.9074134945. The cubic root of 131444102 is about 508.4485750964.

Adding to 131444102 its reverse (201444131), we get a palindrome (332888233).

The spelling of 131444102 in words is "one hundred thirty-one million, four hundred forty-four thousand, one hundred two".

Divisors: 1 2 17 34 137 274 2329 4658 28219 56438 479723 959446 3866003 7732006 65722051 131444102