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13898607419 = 43132247349
BaseRepresentation
bin11001111000110101…
…11110101100111011
31022212121200102002202
430330122332230323
5211431020414134
610215051220415
71001264133224
oct147432765473
938777612082
1013898607419
115992446514
12283a74770b
1314065cb578
1495bc4224b
155652a5d7e
hex33c6beb3b

13898607419 has 4 divisors (see below), whose sum is σ = 13930855200. Its totient is φ = 13866359640.

The previous prime is 13898607379. The next prime is 13898607433. The reversal of 13898607419 is 91470689831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91470689831 = 669771365703.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13898607419 is a prime.

It is a super-2 number, since 2×138986074192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13898607439) 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, 16123244 + ... + 16124105.

It is an arithmetic number, because the mean of its divisors is an integer number (3482713800).

Almost surely, 213898607419 is an apocalyptic number.

13898607419 is a deficient number, since it is larger than the sum of its proper divisors (32247781).

13898607419 is an equidigital number, since it uses as much as digits as its factorization.

13898607419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32247780.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 13898607419 in words is "thirteen billion, eight hundred ninety-eight million, six hundred seven thousand, four hundred nineteen".

Divisors: 1 431 32247349 13898607419