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12148938507 = 35494173709
BaseRepresentation
bin10110101000010001…
…00001011100001011
31011100200101000120110
423110020201130023
5144340112013012
65325305525403
7610030162536
oct132410413413
934320330513
1012148938507
115174839352
1224307a3863
1311b7c81514
1483370ba1d
154b189073c
hex2d422170b

12148938507 has 8 divisors (see below), whose sum is σ = 16199099280. Its totient is φ = 8099035040.

The previous prime is 12148938481. The next prime is 12148938517. The reversal of 12148938507 is 70583984121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12148938507 - 212 = 12148934411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12148938517) 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, 127969 + ... + 201677.

It is an arithmetic number, because the mean of its divisors is an integer number (2024887410).

Almost surely, 212148938507 is an apocalyptic number.

12148938507 is a deficient number, since it is larger than the sum of its proper divisors (4050160773).

12148938507 is an equidigital number, since it uses as much as digits as its factorization.

12148938507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128653.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 12148938507 in words is "twelve billion, one hundred forty-eight million, nine hundred thirty-eight thousand, five hundred seven".

Divisors: 1 3 54941 73709 164823 221127 4049646169 12148938507