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13707461 = 28148781
BaseRepresentation
bin110100010010…
…100011000101
3221210102002202
4310102203011
512002114321
61205444245
7224340305
oct64224305
927712082
1013707461
117812689
124710685
132abc231
141b6b605
15130b70b
hexd128c5

13707461 has 4 divisors (see below), whose sum is σ = 13756524. Its totient is φ = 13658400.

The previous prime is 13707437. The next prime is 13707467. The reversal of 13707461 is 16470731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16470731 = 50932359.

It can be written as a sum of positive squares in 2 ways, for example, as 4060225 + 9647236 = 2015^2 + 3106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13707461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13707467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24110 + ... + 24671.

It is an arithmetic number, because the mean of its divisors is an integer number (3439131).

Almost surely, 213707461 is an apocalyptic number.

It is an amenable number.

13707461 is a deficient number, since it is larger than the sum of its proper divisors (49063).

13707461 is an equidigital number, since it uses as much as digits as its factorization.

13707461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49062.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 13707461 is about 3702.3588426839. The cubic root of 13707461 is about 239.3236804136.

The spelling of 13707461 in words is "thirteen million, seven hundred seven thousand, four hundred sixty-one".

Divisors: 1 281 48781 13707461