Search a number
-
+
52920023 = 135389863
BaseRepresentation
bin1100100111011…
…1111011010111
310200120121121212
43021313323113
5102021420043
65130132035
71211545532
oct311677327
9120517555
1052920023
1127965662
121588101b
13ac6b530
147057a19
1549a5018
hex3277ed7

52920023 has 16 divisors (see below), whose sum is σ = 58786560. Its totient is φ = 47334144.

The previous prime is 52919981. The next prime is 52920037. The reversal of 52920023 is 32002925.

It is not a de Polignac number, because 52920023 - 212 = 52915927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52920083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60890 + ... + 61752.

It is an arithmetic number, because the mean of its divisors is an integer number (3674160).

Almost surely, 252920023 is an apocalyptic number.

52920023 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

52920023 is a deficient number, since it is larger than the sum of its proper divisors (5866537).

52920023 is a wasteful number, since it uses less digits than its factorization.

52920023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 52920023 is about 7274.6149726291. The cubic root of 52920023 is about 375.4395391315.

Adding to 52920023 its reverse (32002925), we get a palindrome (84922948).

The spelling of 52920023 in words is "fifty-two million, nine hundred twenty thousand, twenty-three".

Divisors: 1 13 53 89 689 863 1157 4717 11219 45739 61321 76807 594607 998491 4070771 52920023