Search a number
-
+
20152045241 = 109199929051
BaseRepresentation
bin10010110001001001…
…111100111010111001
31221000102121222002222
4102301021330322321
5312232410421431
613131400133425
71312246362326
oct226111747271
957012558088
1020152045241
118601338949
123aa4a67275
131b92041733
14d92583b4d
157ce2a157b
hex4b127ceb9

20152045241 has 8 divisors (see below), whose sum is σ = 20439144000. Its totient is φ = 19866805200.

The previous prime is 20152045231. The next prime is 20152045247. The reversal of 20152045241 is 14254025102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20152045241 is a prime.

It is a super-2 number, since 2×201520452412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20152045241.

It is not an unprimeable number, because it can be changed into a prime (20152045247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442835 + ... + 486216.

It is an arithmetic number, because the mean of its divisors is an integer number (2554893000).

Almost surely, 220152045241 is an apocalyptic number.

It is an amenable number.

20152045241 is a deficient number, since it is larger than the sum of its proper divisors (287098759).

20152045241 is a wasteful number, since it uses less digits than its factorization.

20152045241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929359.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 20152045241 in words is "twenty billion, one hundred fifty-two million, forty-five thousand, two hundred forty-one".

Divisors: 1 109 199 21691 929051 101266559 184881149 20152045241