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131842190 = 25107123217
BaseRepresentation
bin1111101101111…
…00000010001110
3100012002021111002
413312330002032
5232222422230
621025500302
73160432364
oct766740216
9305067432
10131842190
116846aa97
12381a1692
132141213c
141371d634
15b894545
hex7dbc08e

131842190 has 16 divisors (see below), whose sum is σ = 239535792. Its totient is φ = 52243584.

The previous prime is 131842169. The next prime is 131842219. The reversal of 131842190 is 91248131.

It is a super-2 number, since 2×1318421902 = 34764726127992200, which contains 22 as substring.

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, 60539 + ... + 62678.

It is an arithmetic number, because the mean of its divisors is an integer number (14970987).

Almost surely, 2131842190 is an apocalyptic number.

131842190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131842190 is a deficient number, since it is larger than the sum of its proper divisors (107693602).

131842190 is a wasteful number, since it uses less digits than its factorization.

131842190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123331.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 131842190 is about 11482.2554404612. The cubic root of 131842190 is about 508.9613489203.

The spelling of 131842190 in words is "one hundred thirty-one million, eight hundred forty-two thousand, one hundred ninety".

Divisors: 1 2 5 10 107 214 535 1070 123217 246434 616085 1232170 13184219 26368438 65921095 131842190