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13880958901 = 21977631613
BaseRepresentation
bin11001110110101111…
…01001111110110101
31022211101110202212221
430323113221332311
5211412011141101
610213221042341
71000661126635
oct147327517665
938741422787
1013880958901
115983491967
1228348563b1
131402a5c564
1495976a6c5
1556396baa1
hex33b5e9fb5

13880958901 has 4 divisors (see below), whose sum is σ = 13881612492. Its totient is φ = 13880305312.

The previous prime is 13880958863. The next prime is 13880958941. The reversal of 13880958901 is 10985908831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7863078276 + 6017880625 = 88674^2 + 77575^2 .

It is a cyclic number.

It is not a de Polignac number, because 13880958901 - 29 = 13880958389 is a prime.

It is a super-2 number, since 2×138809589012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880958941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293830 + ... + 337783.

It is an arithmetic number, because the mean of its divisors is an integer number (3470403123).

Almost surely, 213880958901 is an apocalyptic number.

It is an amenable number.

13880958901 is a deficient number, since it is larger than the sum of its proper divisors (653591).

13880958901 is an equidigital number, since it uses as much as digits as its factorization.

13880958901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653590.

The product of its (nonzero) digits is 622080, while the sum is 52.

The spelling of 13880958901 in words is "thirteen billion, eight hundred eighty million, nine hundred fifty-eight thousand, nine hundred one".

Divisors: 1 21977 631613 13880958901