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134121418 = 21923153457
BaseRepresentation
bin1111111111010…
…00011111001010
3100100101001222221
413333220133022
5233313341133
621150404254
73216004354
oct777503712
9310331887
10134121418
1169787452
1238b0068a
1321a2c6b2
1413b540d4
15bb94a2d
hex7fe87ca

134121418 has 16 divisors (see below), whose sum is σ = 220979520. Its totient is φ = 60768576.

The previous prime is 134121389. The next prime is 134121451. The reversal of 134121418 is 814121431.

It is a junction number, because it is equal to n+sod(n) for n = 134121392 and 134121401.

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, 75855 + ... + 77602.

It is an arithmetic number, because the mean of its divisors is an integer number (13811220).

Almost surely, 2134121418 is an apocalyptic number.

134121418 is a deficient number, since it is larger than the sum of its proper divisors (86858102).

134121418 is a wasteful number, since it uses less digits than its factorization.

134121418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153501.

The product of its digits is 768, while the sum is 25.

The square root of 134121418 is about 11581.0801741461. The cubic root of 134121418 is about 511.8775061983.

Adding to 134121418 its reverse (814121431), we get a palindrome (948242849).

The spelling of 134121418 in words is "one hundred thirty-four million, one hundred twenty-one thousand, four hundred eighteen".

Divisors: 1 2 19 23 38 46 437 874 153457 306914 2915683 3529511 5831366 7059022 67060709 134121418