Search a number
-
+
20175201042 = 2323739197831
BaseRepresentation
bin10010110010100010…
…010010001100010010
31221002001012101220020
4102302202102030102
5312304322413132
613133544324310
71312650244053
oct226242221422
957061171806
1020175201042
118613414177
123ab0773696
131b96a8b3a9
14d9569072a
157d132752c
hex4b2892312

20175201042 has 32 divisors (see below), whose sum is σ = 42161955840. Its totient is φ = 6423935760.

The previous prime is 20175200999. The next prime is 20175201049. The reversal of 20175201042 is 24010257102.

It is not an unprimeable number, because it can be changed into a prime (20175201049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3067 + ... + 200897.

It is an arithmetic number, because the mean of its divisors is an integer number (1317561120).

Almost surely, 220175201042 is an apocalyptic number.

20175201042 is an abundant number, since it is smaller than the sum of its proper divisors (21986754798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20175201042 is a wasteful number, since it uses less digits than its factorization.

20175201042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198598.

The product of its (nonzero) digits is 1120, while the sum is 24.

Adding to 20175201042 its reverse (24010257102), we get a palindrome (44185458144).

The spelling of 20175201042 in words is "twenty billion, one hundred seventy-five million, two hundred one thousand, forty-two".

Divisors: 1 2 3 6 23 46 69 138 739 1478 2217 4434 16997 33994 50991 101982 197831 395662 593493 1186986 4550113 9100226 13650339 27300678 146197109 292394218 438591327 877182654 3362533507 6725067014 10087600521 20175201042