Search a number
-
+
23545130331 = 3157415312037
BaseRepresentation
bin10101111011011001…
…100010110101011011
32020202220022112211010
4111323121202311123
5341210023132311
614452205505003
71462320206562
oct257331426533
966686275733
1023545130331
119a926809a8
124691272163
1322b2cb5ca8
1411d5070bd9
1592c0deda6
hex57b662d5b

23545130331 has 16 divisors (see below), whose sum is σ = 31603698464. Its totient is φ = 15591723264.

The previous prime is 23545130269. The next prime is 23545130347. The reversal of 23545130331 is 13303154532.

It is not a de Polignac number, because 23545130331 - 211 = 23545128283 is a prime.

It is a super-2 number, since 2×235451303312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23545130431) 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, 1950045 + ... + 1962081.

It is an arithmetic number, because the mean of its divisors is an integer number (1975231154).

Almost surely, 223545130331 is an apocalyptic number.

23545130331 is a deficient number, since it is larger than the sum of its proper divisors (8058568133).

23545130331 is a wasteful number, since it uses less digits than its factorization.

23545130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16350.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 23545130331 its reverse (13303154532), we get a palindrome (36848284863).

The spelling of 23545130331 in words is "twenty-three billion, five hundred forty-five million, one hundred thirty thousand, three hundred thirty-one".

Divisors: 1 3 157 471 4153 12037 12459 36111 652021 1889809 1956063 5669427 49989661 149968983 7848376777 23545130331