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131494 = 21143139
BaseRepresentation
bin100000000110100110
320200101011
4200012212
513201434
62452434
71055236
oct400646
9220334
10131494
118a880
126411a
1347b0c
1435cc6
1528e64
hex201a6

131494 has 16 divisors (see below), whose sum is σ = 221760. Its totient is φ = 57960.

The previous prime is 131489. The next prime is 131497. The reversal of 131494 is 494131.

131494 = T142 + T143 + ... + T153.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877 + ... + 1015.

It is an arithmetic number, because the mean of its divisors is an integer number (13860).

2131494 is an apocalyptic number.

131494 is a deficient number, since it is larger than the sum of its proper divisors (90266).

131494 is a wasteful number, since it uses less digits than its factorization.

131494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195.

The product of its digits is 432, while the sum is 22.

The square root of 131494 is about 362.6210142835. The cubic root of 131494 is about 50.8512904995.

It can be divided in two parts, 131 and 494, that added together give a 4-th power (625 = 54).

The spelling of 131494 in words is "one hundred thirty-one thousand, four hundred ninety-four".

Divisors: 1 2 11 22 43 86 139 278 473 946 1529 3058 5977 11954 65747 131494