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131042214 = 2327699467
BaseRepresentation
bin1111100111110…
…00101110100110
3100010120122010100
413303320232212
5232021322324
621000404530
73150561162
oct763705646
9303518110
10131042214
1167a73a56
1237a76746
13211c1c94
1413591ca2
15b7874c9
hex7cf8ba6

131042214 has 24 divisors (see below), whose sum is σ = 284324040. Its totient is φ = 43619328.

The previous prime is 131042209. The next prime is 131042231. The reversal of 131042214 is 412240131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9109 + ... + 18575.

It is an arithmetic number, because the mean of its divisors is an integer number (11846835).

Almost surely, 2131042214 is an apocalyptic number.

131042214 is an abundant number, since it is smaller than the sum of its proper divisors (153281826).

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

131042214 is a wasteful number, since it uses less digits than its factorization.

131042214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10244 (or 10241 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 131042214 is about 11447.3671208711. The cubic root of 131042214 is about 507.9298552579.

Adding to 131042214 its reverse (412240131), we get a palindrome (543282345).

The spelling of 131042214 in words is "one hundred thirty-one million, forty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 769 1538 2307 4614 6921 9467 13842 18934 28401 56802 85203 170406 7280123 14560246 21840369 43680738 65521107 131042214