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2159319601 = 3169655471
BaseRepresentation
bin1000000010110100…
…1001101000110001
312120111010210122001
42000231021220301
513410241211401
6554133414001
7104336625265
oct20055115061
95514123561
102159319601
11a0897485a
1250319a301
1328548a20a
14166acc0a5
15c9883601
hex80b49a31

2159319601 has 4 divisors (see below), whose sum is σ = 2228975104. Its totient is φ = 2089664100.

The previous prime is 2159319563. The next prime is 2159319629. The reversal of 2159319601 is 1069139512.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2159319601 - 211 = 2159317553 is a prime.

It is a super-2 number, since 2×21593196012 = 9325322278525598402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2159319641) 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, 34827705 + ... + 34827766.

It is an arithmetic number, because the mean of its divisors is an integer number (557243776).

Almost surely, 22159319601 is an apocalyptic number.

It is an amenable number.

2159319601 is a deficient number, since it is larger than the sum of its proper divisors (69655503).

2159319601 is an equidigital number, since it uses as much as digits as its factorization.

2159319601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69655502.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 2159319601 is about 46468.4796501887. The cubic root of 2159319601 is about 1292.5250705791.

The spelling of 2159319601 in words is "two billion, one hundred fifty-nine million, three hundred nineteen thousand, six hundred one".

Divisors: 1 31 69655471 2159319601