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13828707 = 32532547
BaseRepresentation
bin110100110000…
…001001100011
3222000120102100
4310300021203
512020004312
61212221443
7225353634
oct64601143
928016370
1013828707
117895792
12476a883
132b32489
141b9d88b
1513325dc
hexd30263

13828707 has 18 divisors (see below), whose sum is σ = 20396012. Its totient is φ = 9028656.

The previous prime is 13828691. The next prime is 13828723. The reversal of 13828707 is 70782831.

It is an interprime number because it is at equal distance from previous prime (13828691) and next prime (13828723).

It is not a de Polignac number, because 13828707 - 24 = 13828691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13828777) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25008 + ... + 25554.

Almost surely, 213828707 is an apocalyptic number.

13828707 is a deficient number, since it is larger than the sum of its proper divisors (6567305).

13828707 is an equidigital number, since it uses as much as digits as its factorization.

13828707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 13828707 is about 3718.6969492014. The cubic root of 13828707 is about 240.0272364923.

It can be divided in two parts, 13828 and 707, that added together give a triangular number (14535 = T170).

The spelling of 13828707 in words is "thirteen million, eight hundred twenty-eight thousand, seven hundred seven".

Divisors: 1 3 9 53 159 477 547 1641 2809 4923 8427 25281 28991 86973 260919 1536523 4609569 13828707