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11699247401 = 53613618697
BaseRepresentation
bin10101110010101010…
…00101100100101001
31010012100012100100022
422321111011210221
5142430001404101
65212523250225
7562626651002
oct127125054451
933170170308
1011699247401
114a63a13806
122326079975
131145a622ca
147cdad01a9
15487163a1b
hex2b9545929

11699247401 has 8 divisors (see below), whose sum is σ = 12115400904. Its totient is φ = 11290331520.

The previous prime is 11699247383. The next prime is 11699247407. The reversal of 11699247401 is 10474299611.

It can be written as a sum of positive squares in 4 ways, for example, as 266505625 + 11432741776 = 16325^2 + 106924^2 .

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 11699247401 - 26 = 11699247337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11699247407) 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, 1806116 + ... + 1812581.

It is an arithmetic number, because the mean of its divisors is an integer number (1514425113).

Almost surely, 211699247401 is an apocalyptic number.

It is an amenable number.

11699247401 is a deficient number, since it is larger than the sum of its proper divisors (416153503).

11699247401 is an equidigital number, since it uses as much as digits as its factorization.

11699247401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618811.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 11699247401 in words is "eleven billion, six hundred ninety-nine million, two hundred forty-seven thousand, four hundred one".

Divisors: 1 53 61 3233 3618697 191790941 220740517 11699247401